Researcher Profile and Settings

researchmap

https://researchmap.jp/ShumpeiHara

Research Interests

• Boundary layer transition
• Rheology
• Turbulent heat transfer

Research Areas

• Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Fluid engineering
• Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Thermal engineering

Research Experience

• Doshisha University, Faculty of Science and Engineering, Department of Energy and Mechanical Engineering, Associate Professor, 2023/04 - Today
• Doshisha University, Faculty of Science and Engineering, Department of Mechanical Engineering and Science, Assistant Professor, 2020/04 - 2023/03
• Doshisha University, Faculty of Science and Engineering, Department of Energy and Mechanical Engineering, Assistant Professor, 2019/04 - 2020/03
• Visiting researcher, Linne Flow Center, Royal Institute of Technology (KTH), Sweden, 2018/04 - 2019/03
• Research Fellow (PD), Japan Society for the Promotion of Science (JSPS), 2018/04 - 2019/03
• Research Fellow (DC2), Japan Society for the Promotion of Science (JSPS), 2017/04 - 2018/03

Education

• Tokyo University of Science, Division of Science and Engineering, Mechanical Engineering, Graduate School, 2013/04 - 2018/03
• Tokyo University of Science, Faculty of Science and Engineering, Department of Mechanical Engineering, 2009/04 - 2013/03

Degree

• Ph.D.(Eng.), Tokyo University of Science, Mar. 2018

Association Memberships

• JAPAN SOCIETY FOR DESIGN ENGINEERING
• THE JAPAN SOCIETY OF FLUID MECHANICS
• THE HEAT TRANSFER SOCIETY OF JAPAN
• THE JAPAN SOCIETY OF MECHANICAL ENGINEERS

Committee Memberships

• 熱工学部門講習会委員会 幹事, 2023/04 - Today, 一般社団法人 日本機械学会, Society
• 国際交流委員会, 2023/04 - Today, 日本伝熱学会 関西支部, Society
• 専門調査員, 2021/09 - Today, 文部科学省 科学技術・学術政策研究所 科学技術予測センター（NISTEP）, Government
• 流体力学会メーリングリスト"cafe-ml"管理メンバー, 2021/02 - Today, 一般社団法人日本流体力学会, Society
• 支部役員幹事，セミナー委員会委員, 2021/04 - 2023/03, 日本伝熱学会 関西支部, Society
• 実行委員会幹事, 2016/04 - 2016/08, 一般社団法人 日本流体力学会 流体若手夏の学校2016, Society

Awards

• JSME Young Engineers Award
  Mar. 2024, The Japan Society of Mechanical Engineers, Turbulent heat transfer in drag-reducing flow of viscoelastic fluid
• Scientific Contribution Award of the Heat Transfer Society of Japan
  May 2020, The Heat Transfer Society of Japan, 粘弾性流体の流動と伝熱特性の解明に関する業績
• Eiji MUTOH Excellent Student Award
  Mar. 2013, Japan Society for Design Engineering

Published Papers

• Inertia-viscoelastic meandering motion in a backward-facing step flow
  Shumpei Hara; Ryusuke Ii; Shohei Onishi; Takahiro Tsukahara; Yasuo Kawaguchi
  International Journal of Heat and Mass Transfer, Elsevier BV, 242 126793 - 126793, Jun. 2025, Scientific journal
  

  DOI URL
• Role of coherent structures in the transport equation for the vorticity–temperature correlation
  Shumpei Hara; Koji Fukudome; Kyoji Inaoka
  International Journal of Heat and Fluid Flow, Elsevier BV, 112 109696 - 109696, Mar. 2025, Scientific journal
  

  DOI URL
• Flow-induced gel formed by dosing in an open channel flow of surfactant solution
  Yuto Nakagawa; Yusei Yabuuchi; Shumpei Hara
  Proceedings of The 3rd Pacific Rim Thermal Engineering Conference (PRTEC3), Dec. 2024, International conference proceedings
• Cluster growth inside surfactant flow-induced structure gel: Analysis by DP theory
  Kouya Okuno; Shumpei Hara
  Proceedings of The 3rd Pacific Rim Thermal Engineering Conference (PRTEC3), Dec. 2024, International conference proceedings
• PIV measurement of merging phenomenon in two parallel plane impinging jets
  Daisuke Hiroshima; Shumpei Hara; Kyoji Inaoka
  Proceedings of The 3rd Pacific Rim Thermal Engineering Conference (PRTEC3), Dec. 2024, International conference proceedings
• Conjugate heat transfer analysis of heat exchange channels with step
  Yuma Watanabe; Shumpei Hara; Kyoji Inaoka
  Proceedings of The 3rd Pacific Rim Thermal Engineering Conference (PRTEC3), Dec. 2024, International conference proceedings
• Acceleration spectrum analysis in channel turbulence of viscoelastic fluid
  Takumi Minami; Shumpei Hara
  Proceedings of The 3rd Pacific Rim Thermal Engineering Conference (PRTEC3), Dec. 2024, International conference proceedings
• Scale of disturbance structures around the second peak of velocity fluctuations in a turbulent boundary layer at very high Reynolds numbers
  M. Shimizu; R. Kaji; I. Watanabe; K. Matsui; S. Hara; K. Kato; Y. Naka; A. Inasawa; M. Matsubara
  Proceedings of Twenty-first International Conference on Flow Dynamics (ICFD2024), Nov. 2024, International conference proceedings
• Near-wall structure of vorticity-temperature correlation in wall-bounded turbulence
  Shumpei Hara; Koji Fukudome; Kyoji Inaoka
  Proceedings of 1st European Fluid Dynamics Conference (EFDC1), Sep. 2024, International conference proceedings
• Two-point correlation analysis of large-scale structure in a turbulent channel flow installed with the flexible thin film
  Shinya Nagino; Hiroya Mamori; Shumpei Hara
  Proceedings of 1st European Fluid Dynamics Conference (EFDC1), Sep. 2024, International conference proceedings
• Infrared thermographic evaluation of wall-temperature streak in boundary-layer transition with free-stream turbulence
  Shumpei Hara; Shinya Nagino; Kyoji Inaoka
  IUTAM transition 2024, Sep. 2024, International conference proceedings
• The velocity and thermal fields of two parallel plane jets using simultaneous PIV and two-color LIF measurements
  Soichiro Hiromasa; Shumpei Hara; Kyoji Inaoka
  International Journal of Heat and Fluid Flow, Elsevier BV, 103 109192 - 109192, Oct. 2023, Scientific journal
  

  DOI URL
• Stereo-PIV measurement of boundary-layer transition subjected to free-stream turbulence
  Genki Miyashita; Taichi Nakai; Shumpei Hara
  Proceedings of the International Symposium on Transport Phenomena (ISTP33), 1 - 8, Sep. 2023, International conference proceedings
• Influence of large-scale turbulent motion on formation of surfactant flow-induced gels
  Keito Morishita; Shin Hirota; Shumpei Hara
  Proceedings of the International Symposium on Transport Phenomena (ISTP33), 1 - 6, Sep. 2023, International conference proceedings
• Flow visualization and time scale evaluation by PIV measurement in reciprocating agitator in the turbulence of a viscoelastic fluid
  Shu Sato; Shumpei Hara
  Proceedings of the International Symposium on Transport Phenomena (ISTP33), 1 - 6, Sep. 2023, International conference proceedings
• Role of coherent structures on transport equation for vorticity-temperature correlation
  Shumpei Hara; Koji Fukudome; Kyoji Inaoka
  Proceedings of 10th International Symposium on Turbulence, Heat and Mass Transfer, 1 - 8, Sep. 2023, International conference proceedings
• Experimental study on turbulent flow characteristics of viscoelastic fluid relating to the mixing performance in a model agitator
  Shumpei Hara; Shogo Ebihara; Yasuo Kawaguchi
  Proceedings of 10th International Symposium on Turbulence, Heat and Mass Transfer, 1 - 6, Sep. 2023, International conference proceedings
• Experimental Lagrangian study of viscoelastic vibration in viscoelastic turbulent channel flow
  Takumi Minami; Shumpei Hara
  Proceedings of 10th International Symposium on Turbulence, Heat and Mass Transfer, 1 - 9, Sep. 2023, International conference proceedings
• Transport dissimilarity in turbulent channel flow installed with flexible thin films
  Shinya Nagino; Hiroya Mamori; Shumpei Hara
  Proceedings of 10th International Symposium on Turbulence, Heat and Mass Transfer, 1 - 8, Sep. 2023, International conference proceedings
• Dissimilar turbulent momentum and heat transfer associated with viscoelastic vibration in channel flow
  Shumpei Hara; Kana Watanabe; Yuichi Kaiho; Takahiro Tsukahara; Yasuo Kawaguchi
  International Journal of Heat & Mass Transfer, Elsevier BV, 207(15) 123991 - 123991, Jun. 2023, Scientific journal
  

  DOI URL
• Investigation of generation and breakdown mechanisms in turbulent stripes of plane Couette flow
  Hirohito Kawajiri; Koji Fukudome; Shumpei Hara
  Proceedings of 9th Asian Joint Workshop on Thermophysics and Fluid Science (AJWTF2022), 1 - 3, Nov. 2022, Symposium
• Power characteristics and flow visualization in reciprocating agitator in the turbulence of a viscoelastic fluid
  Shu Sato; Shumpei Hara
  Proceedings of 9th Asian Joint Workshop on Thermophysics and Fluid Science (AJWTF2022), 1 - 3, Nov. 2022, Symposium
• Experimental investigation of streaky structure in boundary layer transition induced by free-stream turbulence
  Taichi Nakai; Shumpei Hara
  Proceedings of 9th Asian Joint Workshop on Thermophysics and Fluid Sciencee (AJWTF2022), 1 - 3, Nov. 2022, Symposium
• Measurement of velocity field around irreversible flow-induced structure gel formed by jet hole with mesh
  Shin Hirota; Shumpei Hara
  Proceedings of 9th Asian Joint Workshop on Thermophysics and Fluid Science (AJWTF2022), 1 - 3, Nov. 2022, Symposium
• Formation of gel-like shear-induced structure with dosing of dilute surfactant solution and its effect on turbulent channel flow
  Shumpei Hara; Kazuki Ishii; Yasuo Kawaguchi
  Open Journal of Fluid Dynamics, Scientific Research Publishing, Inc., 12(03) 249 - 262, Sep. 2022, Scientific journal
  

  URLDOI URL
• Effects of an impingement plate upon the turbulent velocity of a two parallel plane jet with a periodic vortex shedding phenomenon
  Soichiro Hiromasa; Shumpei Hara; Kyoji Inaoka
  Proceedings of The ASME Fluids Engineering Division Summer Meeting, Aug. 2022, International conference proceedings
• Mechanical properties of irreversible gel induced by dosing with surfactant solution
  Shin Hirota; Shumpei Hara
  Proceedings of The ASME Fluids Engineering Division Summer Meeting, Aug. 2022, International conference proceedings
• Turbulent channel flow controlled by traveling-wave-like body force mimicking oscillating thin films
  Ryo Yamamoto; Junichi Morita; Hiroya Mamori; Takeshi Miyazaki; Shumpei Hara
  Physics of Fluids, AIP Publishing, 34(8) 085106 - 085106, Aug. 2022, Scientific journal
  

  URLDOI URL
• Heat transfer enhancement by traveling wave-like body force in turbulent channel flow
  Ryo Yamamoto; Junichi Morita; Hiroya Mamori; Takeshi Miyazaki; Shumpei Hara
  Proceedings of the 12th International Symposium on Turbulence and Shear Flow Phenomena, 347, Jul. 2022, International conference proceedings
• Turbulent stripe survival in plane Couette flow
  Hirohito Kawajiri; Koji Fukudome; Shumpei Hara
  Proceedings of the 12th International Symposium on Turbulence and Shear Flow Phenomena, 311 , Jul. 2022, International conference proceedings
• The turbulent shear stress and turbulent heat flux of two parallel plane jets with periodic vortex shedding
  Soichiro Hiromasa; Shumpei Hara; Kyoji Inaoka
  Proceedings of the 12th International Symposium on Turbulence and Shear Flow Phenomena, 252 , Jul. 2022, International conference proceedings
• Isolated Roughness and Tollmien-Schlichting Waves in Boundary-Layer Transition
  Shumpei Hara; Santhosh B. Mamidala; Jens H. M. Fransson
  IUTAM Laminar-Turbulent Transition, 193 - 202, 2022, In book
• Direct numerical simulation of turbulent channel flow controlled by traveling wave-like body force mimicking self-excited oscillation of thin film
  Ryo Yamamotoa; Hiroya Mamoria; Shumpei Hara
  Proceedings of the 8th Asian Symposium on Computational Heat Transfer and Fluid Flow, Sep. 2021, International conference proceedings
• Turbulent transport dissimilarity with modulated turbulence structure in channel flow of viscoelastic fluid
  Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  International Journal of Heat and Fluid Flow, Elsevier BV, 86 108739 - 108739, Dec. 2020, Scientific journal
  

  DOI URL
• Heat transfer of three-dimensional backward-facing step flow : local heat transfer coefficients on the bottom wall and upper wall
  S. Zou; T. Murayama; M. Shogo; S. Hara; K. Inaoka
  The Harris science review of Doshisha University, 61(2) 125 - 131, Jul. 2020, Research institution
• Influence of viscoelasticity on mixing performance of primary and secondary circulation flows in stirred vessels
  Shumpei Hara; Shogo Ebihara; Yasuo Kawaguchi
  Physics of Fluids, AIP Publishing, 32(7) 075102 - 075102, 01 Jul. 2020, Scientific journal
  

  URLDOI URL
• Experimental study on mixing performance and flow characteristics of viscoelastic fluid flow in a model agitator
  Shogo Ebihara; Shumpei Hara; Yasuo Kawaguchi
  Proceedings of the 30th International Symposium on Transport Phenomena (ISTP30), Nov. 2019, International conference proceedings
• Formation of gel-like shear-induced structure with dosing of dilute surfactant solution and its effect on turbulent channel flow
  Kazuki Ishii; Shumpei Hara; Yasuo Kawaguchi
  Proceedings of the 30th International Symposium on Transport Phenomena (ISTP30), Scientific Research Publishing, Inc., 12(03) 249 - 262, Nov. 2019, International conference proceedings
  

  URLDOI URL
• Simultaneous measurement of turbulent momentum and mass fluxes in channel flow of viscoelastic fluid
  Shumpei Hara; Tsukahara Takahiro; Yasuo Kawaguchi
  Proceedings of the 11th International Symposium on Turbulence and Shear Flow Phenomena (TSFP11), 63 1 - 6, Jul. 2019, International conference proceedings
• Exergy transfer characteristics analysis of turbulent heat transfer enhancement in surfactant solution
  Shumpei Hara; Andrew J. Maxson; Yasuo Kawaguchi
  International Journal of Heat & Mass Transfer, 130 545 - 554, Mar. 2019, Scientific journal
• Experimental study on enhancement and recovery of turbulent heat transfer relating to the functionality of surfactant solution by inserted mesh
  Yosuke Kawabata; Shumpei Hara; Shoko Kawada; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of the 16th International Heat Transfer Conference (IHTC-16), IHTC16-23930 1 - 8, Aug. 2018, International conference proceedings
• Appearance of gel-like shear-induced structures and flow modification in turbulent channel flow with dosing of dilute surfactant solution
  Shumpei Hara; Kazuki Ishii; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of the 9th International Symposium on Turbulence, Heat and Mass Transfer (THMT9), S21.1 1 - 8, Jul. 2018, International conference proceedings
• Experimental investigation of streamwise velocity fluctuation based on the Reynolds-number dependency in turbulent viscoelastic-fluid flow
  Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  International Journal of Heat and Fluid Flow, ELSEVIER SCIENCE INC, 68 281 - 289, Dec. 2017, Scientific journal
  

  DOI URL
• Analysis of the turbulent kinetic energy budget for meandering motion appearing in a backward-facing step flow of viscoelastic fluid in high Reynolds number
  Shumpei Hara; Shohei Onishi; Ryusuke Ii; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of the 10th International Symposium on Turbulence and Shear Flow Phenomena (TSFP10), 1D-4 1 - 6, Jul. 2017, International conference proceedings
• Analysis of an organized turbulent structure using a pattern recognition technique in a drag-reducing surfactant solution flow
  Shumpei Hara; Ryusuke Ii; Takahiro Tsukahara; Yasuo Kawaguchi
  INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, ELSEVIER SCIENCE INC, 63 56 - 66, Feb. 2017, Scientific journal
  

  DOI URL
• Instantaneous turbulent structure relating to momentum and scalar transport in a reducing channel flow with surfactant additives
  Takuya Matsumoto; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2017, VOL 1C, AMER SOC MECHANICAL ENGINEERS, FEDSM2017-69533 1 - 7, 2017, International conference proceedings
• Large eddy structure appearing in meandering motion of high Reynolds number viscoelastic flow past a backward-facing step
  Shohei Onishi; Ryusuke Li; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2017, VOL 1C, AMER SOC MECHANICAL ENGINEERS, FEDSM2017-69558 1 - 10, 2017, International conference proceedings
• Experimental study on functionality of surfactant solution in turbulent heat transfer by varying local shear rate
  Takahiro Tsukahara; Shumpei Hara; Shoko Kawada; Yasuo Kawaguchi
  INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, PERGAMON-ELSEVIER SCIENCE LTD, 102 360 - 368, Nov. 2016, Scientific journal
  

  DOI URL
• Experimental investigation on the streamwise velocity fluctuation with the Reynolds-number dependence in turbulent viscoelastic-fluid flows
  Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of 11th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM11), 153 1 - 6, Sep. 2016, International conference proceedings
• A study on heat transport phenomena in a developed thermal boundary layer of drag reducing channel flow
  K. Watanabe; Y. Kaiho; S. Hara; T. Tsukahara; Y. Kawaguchi
  American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM, American Society of Mechanical Engineers (ASME), 1, 2016, International conference proceedings
  

  DOI URL
• Spectral analysis and discussion on the velocity fluctuation in drag reducing channel flow by surfactant additives
  Yuichi Kaiho; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM, American Society of Mechanical Engineers (ASME), 1, 2016, International conference proceedings
  

  DOI URL
• A study on heat transport phenomena in a developed thermal boundary of drag reducing channel flow
  K. Watanabe; Y. Kaiho; S. Hara; T. Tsukahara; Y. Kawaguchi
  PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2016, VOL 1B, AMER SOC MECHANICAL ENGINEERS, FEDSM2016-7680 1 - 8, 2016, International conference proceedings
• Temperature fluctuation appearing in bilayered thermal boundary in drag-reducing surfactant solution flow
  Kana Watanabe; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of the 8th International Symposium on Turbulence, Heat and Mass Transfer (THMT8), 24.1 1 - 12, Sep. 2015, International conference proceedings
• Analysis of organized turbulent structure by pattern recognition technique in drag-reducing surfactant solution flow in a channel
  Shumpei Hara; Ryusuke Ii; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of the 8th International Symposium on Turbulence, Heat and Mass Transfer (THMT8), 27.2 1 - 12, Sep. 2015, International conference proceedings
• Measurement of turbulence statistics and instability in backward-facing step flow with surfactant additives by particle image velocimetry
  Ryosuke Ii; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of the Ninth International Symposium on Turbulence and Shear Flow Phenomena (TSFP9), Jul. 2015
• Turbulence modulation and instability induced by surfactant additives in backward-facing step flow
  I. I. Ryusuke; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015, TSFP-9, 1, 2015, International conference proceedings
• Operation of functional fluid by local wall heating in a drag-reducing surfactant solution flow
  Shumpei Hara; Shoko Kawada; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of the 15th International Heat Transfer Conference (IHTC15), IHTC15-9676 1 - 12, Aug. 2014, International conference proceedings

MISC

• Wall turbulence of surfactant solution flow with micro- or macro-molecule structure
  Shumpei Hara
  Nagare: journal of Japan Society of Fluid Mechanics, 43(2) 168 - 173, 2024, Introduction scientific journal
• オハイオ州立大学での留学体験
  原 峻平
  理大科学フォーラム：東京理科大学科学教養誌, 東京理科大学, 34(9) 56 - 59, Sep. 2017, Others
• 流体若手夏の学校2016
  原 峻平
  ANNUAL REPORT OF THE MURATASCIENCE FOUNDATION, (30) 513 - 514, Dec. 2016, Meeting report
• 流体若手夏の学校2016の報告
  原 峻平
  日本流体力学会誌ながれ, 35(6) 507 , Dec. 2016, Meeting report
• Heat transfer enhancement caused by the meandering motion appearing in the backward-facing step flow with surfactant additives in high Reynolds number
  Shumpei Hara; Ryusuke Ii; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of the First Pacific-Rim Thermal Engineering Conference (PRTEC2016), PRTEC-14998 1 - 5, Mar. 2016, Introduction international proceedings
• Consideration for turbulence energy spectrum in drag-reducing flow with surfactant additive
  Shumpei Hara
  Nagare, Journal of Japan Society of Fluid Mechanics, 日本流体力学会, 33(6) 531 - 538, Dec. 2014, Introduction scientific journal

Presentations

• Turbulent heat transfer by the lifting of the wall vorticity in wall turbulence
  Shumpei Hara; Fukudome Koji; Kyoji Inaoka
  The Japan Society of Fluid Mechanics Annual Meeting 2023, 27 Sep. 2024, 25 Sep. 2024, 27 Sep. 2024, Oral presentation
• Vortex generation and heat transfer enhancement downstream of a vortex generator installed in a flat plate laminar boundary layer
  Kaito Tanaka; Shumpei Hara; Kyoji Inaoka
  Proceedings of 52th visualization symposium, 20 Jul. 2024, 19 Jul. 2024, 21 Jul. 2024, Oral presentation
• Flow separation and aerodynamic characteristics of flat plate corrugated airfoil with apices on the front half of the airfoil
  Asuka Ichiyama; Shumpei Hara; Kyoji Inaoka
  Proceedings of 51th visualization symposium, 20 Jul. 2024, 19 Jul. 2024, 21 Jul. 2024, Oral presentation
• Formation and collapse of local structure inside surfactant flow-induced gel formed in open-channel turbulence
  Yuto Nakagawa; Yusei Yabuuchi; Shumpei Hara
  Proceedings of 51th visualization symposium, 19 Jul. 2024, 19 Jul. 2024, 21 Jul. 2024, Oral presentation
• Acceleration probability density distribution of fluid particles in channel turbulence of viscoelastic fluid
  Takumi Minami; Shumpei Hara
  Proceedings of The 61rd National Heat Transfer Symposium, 29 May 2024, 29 May 2024, 31 May 2024, Oral presentation
• Spectral analysis of turbulent motion and deformation velocity of flexible thin films installed in channel turbulent flow
  Shinya Nagino; Hiroya Mamori; Shumpei Hara
  Proceedings of The 61rd National Heat Transfer Symposium, 29 May 2024, 29 May 2024, 31 May 2024, Oral presentation
• Scalicity analysis of turbulent heat transfer in wall turbulence
  原峻平; 福留功二; 稲岡恭二
  Proceedings of The 61rd National Heat Transfer Symposium, 29 May 2024, 29 May 2024, 31 May 2024, Oral presentation
• Conjugate heat transfer analysis of single plate heat exchange channels with step
  Yuma Watanabe; Kyoji Inaoka; Shumpei Hara
  Proceedings of The 61rd National Heat Transfer Symposium, 29 May 2024, 29 May 2024, 29 May 2024, Oral presentation
• 弾性振動を利用した乱流熱伝達の効率化
  原峻平
  日本伝熱学会 令和5年度 第4回 カーボンニュートラル技術研究会, 26 Mar. 2024, 26 Mar. 2024, 26 Mar. 2024
• Turbulent statistics and flow structures in turbulent boundary layer on partial superhydrophobic surface
  Daichi Kishi; Shumpei Hara
  The 10th International Workshop of Energy Conversion, 16 Mar. 2024, 15 Mar. 2024, 17 Mar. 2024, Oral presentation
• Experimental investigation of three-dimensional turbulent flow appearing in reciprocating agitation with viscoelastic fluid
  Shu Sato; Shumpei Hara
  The 10th International Workshop of Energy Conversion, 16 Mar. 2024, 15 Mar. 2024, 17 Mar. 2024, Oral presentation
• Numerical analysis of the crisscross motion of vortices downstream in a duct obstructed by a square rod
  Arichika Imamura; Shumpei Hara; Kyoji Inaoka
  Proceedings of JSME Kansai 99th Annual Meeting, 15 Mar. 2024, 15 Mar. 2024, 16 Mar. 2024, Oral presentation
• Maibara wind tunnel experiments on a turbulent boundary layer at very high Reynolds number
  Ayumu Inasawa; Shumpei Hara; Yoshitsugu Naka; Kentaro Kato; Masaharu Matsubara; Atsushi Ido
  The 69th Workshop on Investigation and Control of Transition to Turbulence, 11 Mar. 2024, 11 Mar. 2024, 11 Mar. 2024, Oral presentation
• Scalicity analysis of turbulent Couette flow with scalar transport
  Shumpei Hara; Koji Fukudome; Kyoji Inaoka
  The Japan Society of Fluid Mechanics Annual Meeting 2023, 20 Sep. 2023, 20 Sep. 2023, 23 Sep. 2023, Oral presentation
• Quadrant analysis in turbulent boundary layer with superhydrophobic surface
  Shinnosuke Suda; Kyoji Inaoka; Hiroya Mamori; Shumpei Hara
  Proceedings of The Japan Society of Fluid Mechanics Annual Meeting 2023, 20 Sep. 2023, 20 Sep. 2023, 23 Sep. 2023, Oral presentation
• Heat transfer characteristics downstream of a vortex generator installed in a flat plate boundary layer
  Kentaro Higashiyama; Ekiryu Li; Kyoji Inaoka; Shumpei Hara
  Proceedings of 51th visualization symposium, 09 Aug. 2023, 08 Aug. 2023, 10 Aug. 2023, Oral presentation
• Growth process of flow-induced macro gel formed by dosing of surfactant solution in open-channel flow
  Yuto Nakagawa; Keito Morishita; Shumpei Hara
  Proceedings of 51th visualization symposium, 09 Aug. 2023, 08 Aug. 2023, 10 Aug. 2023, Oral presentation
• PTV measurements of viscoelastic vibration in channel turbulence of viscoelastic fluid
  Takumi Minami; Shumpei Hara
  Proceedings of The 60rd National Heat Transfer Symposium, 25 May 2023, 25 May 2023, 27 May 2023, Oral presentation
• The relation between turbulent velocity and film deformation velocity in channel turbulence installed with flexible thin film
  Shinya Nagino; Hiroya Mamori; Shumpei Hara
  Proceedings of The 60rd National Heat Transfer Symposium, 25 May 2023, 25 May 2023, 27 May 2023, Oral presentation
• Transport equation for the correlation between turbulent eddy structures and temperature streaks
  Shumpei Hara; Koji Fukudome; Kyoji Inaoka
  Proceedings of The 60rd National Heat Transfer Symposium, 25 May 2023, 25 May 2023, 27 May 2023, Oral presentation
• Experimental observation cycles of the generation and breakdown for turbulent stripes in plane Couette flow
  Hirohito Kawajiri; Koji Fukudome; Shumpei Hara
  Proceedings of The 100th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, 13 Nov. 2022, 12 Nov. 2022, 13 Nov. 2022, Oral presentation
• Turbulent channel flow controlled by traveling-wave-like body force mimicking oscillating thin films
  Ryo Yamamoto; Junichi Morita; Hiroya Mamori; Shumpei Hara; Takeshi Miyazaki
  Proceedings of The 100th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, 12 Nov. 2022, 12 Nov. 2022, 13 Nov. 2022, Oral presentation
• Characteristics of Surface pressure of flat plate corrugated airfoil with five peaks
  Taiki Masuda; Tomohiro Higashise; Shumpei Hara; Kyoji Inaoka
  Proceedings of The 100th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, 12 Nov. 2022, 12 Nov. 2022, 13 Nov. 2022, Oral presentation
• Experimental study of slip and frictional drag reduction effects of superhydrophobic surface in turbulent boundary layer
  Shinnosuke Suda; Kyoji Inaoka; Hiroya Mamori; Shumpei Hara
  Proceedings of The 100th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, 12 Nov. 2022, 12 Nov. 2022, 13 Nov. 2022, Oral presentation
• Growth or destruction of surfactant flow-induced gels in turbulence
  Keito Morishita; Shin Hirota; Shumpei Hara
  Proceedings of The 100th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, 12 Nov. 2022, 12 Nov. 2022, 13 Nov. 2022, Oral presentation
• Heat and flow characteristics downstream of a 3D backward-facing step in a duct with periodic disturbance
  Yuto Iguchi; Arichika Imamura; Shumpei Hara; Kyoji Inaoka
  Proceedings of The 100th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, 12 Nov. 2022, 12 Nov. 2022, 13 Nov. 2022
• Experimental study of wall-temperature streaks in boundary-layer transition with free-stream turbulence
  Shumpei HARA; Go KATO; Kyoji INAOKA
  Proceedings of The 59rd National Heat Transfer Symposium, 18 May 2022, 18 May 2022, 20 May 2022, Oral presentation
• Spatiotemporal characteristics of turbulence structure in viscoelastic fluid flow
  Naoki Higuchi; Shumpei Hara
  Proceedings of JSME Kansai 97th Annual Meeting, 17 Mar. 2022, Oral presentation
• Numerical simulation of backward-facing step flow (Influence of step height)
  Xiaodan Song; Yuto Ikuchi; Shumpei Hara; Kyoji Inaoka
  Proceedings of JSME Kansai 97th Annual Meeting, 17 Mar. 2022, Oral presentation
• Power characteristics of reciprocating agitation in viscoelastic turbulence
  Shu Sato; Shumpei Hara
  Proceedings of JSME Kansai 97th Annual Meeting, 17 Mar. 2022, Oral presentation
• Heat transfer characteristics in boundary layer transition by free-stream-turbulence
  Go Kato; Kyoji Inaoka; Shumpei Hara
  Proceedings of JSME Kansai 97th Annual Meeting, 17 Mar. 2022, Oral presentation
• Heat transfer and pressure drop characteristics of aluminum fabric fins
  Kotatsu Yamada; Zhao Zeming; Kyoji Inaoka; Shumpei Hara
  Proceedings of JSME Kansai 97th Annual Meeting, 16 Mar. 2022, Oral presentation
• Numerical analysis of corrugated airfoil with two valleys
  Taiki Masuda; Yoshiki Wakata; Shumpei Hara; Kyoji Inaoka
  Proceedings of JSME Kansai 2021 Student Branch Conference, 15 Mar. 2022, Oral presentation
• Numerical analysis of heat and fluid flow in a channel with square rod
  Arichika Imamura; Xiaodan Song; Shumpei Hara; Kyoji Inaoka
  Proceedings of JSME Kansai 2021 Student Branch Conference, 15 Mar. 2022, Oral presentation
• Direct numerical simulation of dissimilarity effect by traveling wave-like body force control in turbulent channel flow
  Ryo Yamamoto; Hiroya Mamori; Shumpei Hara; Takeshi Miyazaki
  Proceedings of The 99th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, Nov. 2021, Oral presentation
• Research on the free surface shape of swirling flow of viscoelastic fluids in a cylindrical container
  Yoshinori Kodakari; Kyoji Inaoka; Shumpei Hara
  Proceedings of 49th visualization symposium, Sep. 2021, Oral presentation
• Formation conditions of the irreversible flow-induced gel of a surfactant solution
  Shin Hirota; Shumpei Hara
  Proceedings of Annual meeting 2021 of The Japan Society of Mechanical Engineers, Sep. 2021, Oral presentation
• Unsteady heat transfer characteristics downstream of a vortex generator attached on the flat plate turbulent boundary layer (Influence of height of a vortex generator)
  Masafumi Tani; Ekiryu Li; Kyoji Inaoka; Shumpei Hara
  Proceedings of Annual meeting 2021 of The Japan Society of Mechanical Engineers, Sep. 2021, Oral presentation
• Numerical simulation on aerodynamics of wings with elliptical motion
  Yoshiki Wakata; Misaki Koshimizu; Shumpei Hara; Kyoji Inaoka
  Proceedings of Annual meeting 2021 of The Japan Society of Mechanical Engineers, Sep. 2021, Oral presentation
• Aerodynamic characteristics of a corrugated wing at low Reynolds number region
  Misaki Koshimizu; Yoshiki Wakata; Shumpei Hara; Kyoji Inaoka
  Proceedings of Annual meeting 2021 of The Japan Society of Mechanical Engineers, Sep. 2021, Oral presentation
• Heat transfer and fluid flow characteristics of parallel plane jets (Effect of vortex shedding phenomenon on turbulence statistics)
  Takato Okazumi; Soichiro Hiromasa; Toshiki Hisayuku; Shumpei Hara; Kyoji Inaoka
  Proceedings of JSME Kansai 96th Annual Meeting, 17 Mar. 2021, 17 Mar. 2021, 18 Mar. 2021, Oral presentation
• Unsteady heat transfer characteristics downstream of the vortex generator installed in the flat plate turbulent boundary layer
  Ekiru Ri; Masafumi Tani; Kyoji Inaoka; Shumpei Hara
  Proceedings of JSME Kansai 2020 Student Branch Conference, 16 Mar. 2021, 16 Mar. 2021, 16 Mar. 2021, Oral presentation
• Spatio-temporal visualization of turbulent stripes in plane Couette flow
  Hirohito Kawajiri; Koji Fukudome; Shumpei Hara; Doshisha University
  Proceedings of JSME Kansai 2020 Student Branch Conference, 16 Mar. 2021, 16 Mar. 2021, 16 Mar. 2021, Oral presentation
• Turbulent transport dissimilarity with turbulence structure in channel flow of viscoelastic fluid
  Shumpei Hara
  International Christmas International Seminar 2020, 21 Dec. 2020, 21 Dec. 2020, 21 Dec. 2020, Oral presentation
• Transport mechanism of organized structure appearing in shear turbulence of viscoelastic fluid
  Shumpei Hara
  27rd The Heat Transfer Society of Japan, Kansai Branch 3th symposium, 09 Dec. 2020, 09 Dec. 2020, 09 Dec. 2020, Oral presentation
• Heat transfer and fluid flow characteristics of two parallel plane jets Effect of vortex shedding phenomenon
  Takato Okazumi; Takahiro Kitamura; Kyoji Inaoka; Shumpei Hara
  Proceedings of The 54rd National Heat Transfer Symposium, 03 Jun. 2020, 03 Jun. 2020, 05 Jun. 2020, Others
• Influence of the installation of a rubber sheet on pressure drop and heat transfer characteristics in turbulent channel flow
  Tomoya Murakami; Shumpei Hara
  Proceedings of The 54rd National Heat Transfer Symposium, 03 Jun. 2020, 03 Jun. 2020, 05 Jun. 2020, Others
• Formation of gel-like shear-induced structure with dosing of dilute surfactant solution and its effect on turbulent channel flow
  Kazuki Ishii; Shumpei Hara; Yasuo Kawaguchi
  Proceedings of Annual meeting 2019 of The Japan Society of Mechanical Engineers, 08 Sep. 2019, Poster presentation
• Experimental study on the flow characteristics and mixing in the agitator flow of viscoelastic fluid
  Shogo Ebihara; Shumpei Hara; Yasuo Kawaguchi
  Proceedings of Annual meeting 2019 of The Japan Society of Mechanical Engineers, 08 Sep. 2019, Poster presentation
• Flow characteristics of turbulent channel flow with micro- or macro-structure formed by adding surfactant
  Shumpei Hara
  The 64th Workshop on “Investigation and Control of Transition to Turbulence”, 28 Mar. 2019, Oral presentation
• Vibration appearing in the viscoelastic layer of a drag reducing-flow of viscoelastic fluid flow
  Shumpei Hara; Yuichi Kaiho; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The Japan Society of Fluid Mechanics Annual Meeting 2017, 30 Aug. 2017, Oral presentation
• Turbulent heat transfer enhancement by vibration appearing in the viscoelastic layer of a viscoelastic fluid flow
  Shumpei Hara; Kana Watanabe; Yuichi Kaiho; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 64th National Congress of Theoretical and Applied Mechanics, 22 Aug. 2017, Oral presentation
• Exergy transfer characteristics analysis of turbulent heat transfer enhancement in surfactant solution
  Shumpei Hara
  The 6thInternational Workshop on Fluid Flow, Heat Transfer and Turbulent Drag Reduction (IWFHT2017), 20 Jul. 2017, Invited oral presentation
• Heat transfer enhancement of surfactant solution flow: Flow and heat transfer after passing through a mesh type micellar destruction device
  Yosuke Kawabata; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 54rd National Heat Transfer Symposium, 24 May 2017, Oral presentation
• Exergy transfer characteristics analysis of turbulent heat transfer enhancement in surfactant solution
  Shumpei Hara; Andrew J. Maxson; Yasuo Kawaguchi
  Proceedings of The 54rd National Heat Transfer Symposium, 24 May 2017, Oral presentation
• Analysis of viscoelastic turbulent flow passing backward-facing step using spatial correlation function
  Shohei Onishi; Ryusuke Ii; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 94th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, 12 Nov. 2016, Oral presentation
• Reynolds-number dependence of turbulent energy in a drag reducing flow of viscoelastic fluid
  Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The Japan Society of Fluid Mechanics Annual Meeting 2016, 26 Sep. 2016, Oral presentation
• Characteristics of the near-wall turbulent structure relating to the momentum and scalar transports in a surfactant solution flow
  Takuya Matsumoto; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 53rd National Heat Transfer Symposium, 24 May 2016, Oral presentation
• Influence of viscoelastic stress on the turbulent Schmidt number in surfactant solution flow
  Shumpei Hara; Takuya Matsumoto; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 53rd National Heat Transfer Symposium, 24 May 2016, Poster presentation
• Study on temporal characteristics of turbulent velocity fluctuation in surfactant solution flow
  Yuichi Kaiho; Shumpei Hara; Yasuo Kawaguchi
  Proceedings of The 93th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, 07 Nov. 2015, Oral presentation
• Experimental investigation of the flattering motion appearing in the viscoelastic fluid turbulent flow in the backward-facing step
  Ryusuke Ii; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The Japan Society of Fluid Mechanics Annual Meeting 2015, 26 Sep. 2015, Oral presentation
• Turbulent eddy structure in the surfactant drag reducing flow obtained by the pattern recognition technique
  Shumpei Hara; Ryusuke Ii; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The Japan Society of Fluid Mechanics Annual Meeting 2015, 26 Sep. 2015, Oral presentation
• The influence of concentration on the inner thermal boundary layer in surfactant solution flow
  Kana Watanabe; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 52rd National Heat Transfer Symposium, 03 Jun. 2015, Oral presentation
• Experimental investigation on heat transfer characteristics of viscoelastic turbulent flow during the relaxation process in the backward-facing step flow
  Ryusuke Ii; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 52rd National Heat Transfer Symposium, 03 Jun. 2015, Oral presentation
• Analysis of well-ordered structure by pattern recognition technique in surfactant solution
  Shumpei Hara; Ryusuke Ii; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 52rd National Heat Transfer Symposium, 03 Jun. 2015, Oral presentation
• Investigation of instability of viscoelastic turbulent flow in backward-facing step flow by PIV
  Ryusuke Ii; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 92th Conference of Fluid Engineering Division of The Japan Society of Mechanical Engineers, 25 Oct. 2014, Oral presentation
• Consideration for turbulence energy spectrum in drag-reducing flow with surfactant additive
  Shumpei Hara; Ryusuke Ii; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The Japan Society of Fluid Mechanics Annual Meeting 2014, 15 Sep. 2014, Oral presentation
• Modification of turbulent suppression effects by wall heating in a surfactant solution flow (2)-Consideration of the turbulent variation by PIV-
  Ryusuke Ii; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 51rd National Heat Transfer Symposium, 21 May 2014, Oral presentation
• Modification of turbulent suppression effects by wall heating in a surfactant solution flow (1)-Based on the micelle association number models-
  Shumpei Hara; Ryusuke Ii; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 51rd National Heat Transfer Symposium, 21 May 2014, Poster presentation
• Experimental investigation on the heat-transfer characteristics and loss of the fluid functionality in surfactant solution flow with the orifice
  Shoko Kawada; Shumpei Hara; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 50rd National Heat Transfer Symposium, 29 May 2013, Oral presentation
• Influence of active scalar and plate spacingin turbulent flow of surfactant solution
  Shumpei Hara; Shoko Kawada; Takahiro Tsukahara; Yasuo Kawaguchi
  Proceedings of The 50rd National Heat Transfer Symposium, 29 May 2013, Oral presentation

Research Projects

• Clarification on growth process of flow-induced gel and it's limitation
  Shumpei Hara
  流動誘起ゲル相転移を利用した新技術・次世代の新規高機能性材料の開発等に向け，信頼性の高い流動誘起ゲルの理論の構築が必要とされる．本研究では，広い開水路の底面から浸出壁を介して界面活性剤溶液を浸み出すことで，開水路乱流中に流動誘起ゲルを作り出し，その時の空間的挙動を実験的に調査する．そして，流動と流動誘起ゲル構造に関する双方の解析を通じて，流動条件ごとの流動誘起ゲルの時空間構造を明らかにし，開水路乱流中で形成される流動誘起ゲルの成長過程と成長限界を解明することを目的とする． 本年度は，これまでに作成した大型開水路の改良を行いつつ，流動誘起ゲルの空間的挙動を調査した．開水路のせん断乱流に界面活性剤溶液を浸出させると，たとえ数十ppmのものであったとしても，流動誘起ゲルが壁面から壁面垂直方向に成長していく様子を捉えることに成功した．このとき，せん断乱流の溶液が水であった場合，規模は小さいものの流動誘起ゲルが形成されることがわかった．また，溶液の浸出開始付近であったとしても，流動誘起ゲルは10分ほどで壁から10cmオーダーの大きさに成長した．流動誘起ゲルはスパン方向に縞状の分布を持ち，流れ方向に一定の周期で揺らいでいる様子も確認された．流動誘起ゲルは固体的性質を有しているため流れをせき止める様子も確認されたが，触ると崩れる程度の強度であることがわかった．, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists, 2020/04 -2023/03, Principal investigator, Grant-in-Aid for Early-Career Scientists, Doshisha University
• Process construction for reversible and irreversible flow-induced gel phase transition-A new strategy for soft matter production
  Shumpei Hara
  Japan society for the promotion of science, Grant-in-Aid for Research Activity start-up, 2019/08 -2021/03, Principal investigator, Competitive research funding
• 界面活性剤添加による乱流渦の改変を利用した熱物質輸送制御
  原 峻平
  前年度まとめた博士論文の一部である，液体の乱流へ界面活性剤を添加した際の省エネルギー効果をエクセルギー解析によって定量的評価を行った内容が，国際雑誌(IJHMT)に掲載された．その他にも，界面活性剤を添加した場合，壁鉛直方向速度変動に対して，主流方向速度変動と濃度変動が位相変調している内容について，査読付き国際学会1件の口頭発表として採択された．実験中，副次的に発見した，液体の平行平板間乱流へ界面活性剤溶液を浸出させた際に現れるゲル形成現象について国際学会（THMT9）にて発表した． スウェーデン王立工科大学との共同研究では，航空力学の分野で重要視される基礎研究である，粗さ付き平板上での境界層遷移について実験的に調査を行った．ゼロ圧力勾配条件下で，粗さに見立てた直径dの円柱一つを平板先端から300mmの位置に設置し，円柱高さhをマイクロ単位で変更したところ，円柱下流の50ｄの位置で不安定性のモードがVaricoseモードからSinuousモードに変わるd/ｈの閾値を発見した．この内容は査読付き国際学会（IUTAM）に採択され，口頭発表の予定である．, 日本学術振興会, 科学研究費助成事業, 2017/04 -2019/03, 特別研究員奨励費, 東京理科大学
• Two-equation and Reynolds-stress models for wall turbulence of viscoelastic fluid
  Tsukahara Takahiro; KAWAGUCHI Yasuo; TANABE Masaaki; TAKAHASHI Michihiro; MINEGISHI Takuya; HARA Shumpei; IKEGAMI Akito; INOUE Shun
  We investigated drag-reducing turbulent flows of viscoelastic fluids in order to construct a new turbulence model applicable for those flows. We developed several models in frameworks of two-equation eddy-viscosity model and Reynolds-stress model. In addition, we performed relevant direct numerical simulations (DNS) and experiments, where the Giesekus constitutive equation and surfactant solutions were employed, respectively. Through a-priori tests using DNS database, we discussed the modeling for non-linear terms in the constitutive equation and improved the predictive performances of a Reynolds-stress model (RSM) in computing a drag-reducing turbulent flow. In the DNS and experiment, we examined the viscoelastic turbulent flows through complicated geometries, such as a channel with finite plates and a backward-facing step. We found the suppressed Kelvin-Helmholtz eddy and the downstream shift of reattachment point, which phenomena were predicted qualitatively by our proposed model., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2013/04 -2016/03, Grant-in-Aid for Scientific Research (C), Tokyo University of Science