NISHINO Koichi

Organization

Faculty of Engineering, Division of Systems Research

Title

Professor

Date of Birth

1960

Research Fields, Keywords

Thermal and Fluid Engineering, Thermal and Fluid Measurement

Mail Address

E-mail address


Graduating School 【 display / non-display

  •  
    -
    1984

    The University of Tokyo   Faculty of Engineering   Department of Mechanical Engineering   Graduated

Graduate School 【 display / non-display

  •  
    -
    1990

    The University of Tokyo  Graduate School, Division of Engineering  Department of Mechanical Engineering    Completed

Degree 【 display / non-display

  • Doctor of Engineering -  The University of Tokyo

External Career 【 display / non-display

  • 1987.04
    -
    1989.03

      Research Fellowship for Young Scientists of the Japan Society for the Promotion of Science  

Academic Society Affiliations 【 display / non-display

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    Japan Society of Mechanical Engineers

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    Visualization Society of Japan

Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display

  • Fluid engineering

  • Thermal engineering

 

Research Career 【 display / non-display

  • Micro imaging of turbulence drag reduction in dilute ploymer solution

    Grant-in-Aid for Scientific Research  

    Project Year:  -   

  • Instability of thermocapillary convection and its microgravity experiment

    New Program for the Promotion of Basic Reseach by Public Corporation  

    Project Year:  -   

  • Development of practical mutli-dimensional flow measurement technique

    Program for Scientific Technology Development for Industries that Creates New Industries  

    Project Year:  -   

Papers 【 display / non-display

  • Turbulence energetics in an axisymmetric impinging jet flow

    Chandra Shekhar and Koichi Nishino

    Physics of Fluids ( AIP Publishing )  31 ( 055111 )   055111-1 - 055111-20   2019.05  [Refereed]

    Single Work

    DOI

  • Turbulence characteristics of radially-confined impinging jet flows

    C Shekhar,K Nishino

    International Journal of Heat and Fluid Flow   75   278 - 299   2019.02  [Refereed]

    Joint Work

    DOI

  • Effect of interfacial heat transfer on basic flow and instability in a high-Prandtl-number thermocapillary liquid bridge

    T Yano, M Hirotani, K Nishino

    International Journal of Heat and Mass Transfer   125   1121 - 1130   2018.10  [Refereed]

    Joint Work

    DOI

  • Convective mixing of miscible liquids in a rotor-stator spinning disk reactor

    Hitoshi Toma and Koichi Nishino

    Chemical Engineering Journal ( Elsevier )  346   329 - 339   2018.08  [Refereed]

    Joint Work

     View Summary

    Convective mixing of two miscible liquids injected into a rotor-stator spinning disk reactor (RS-SDR) has been studied using an LIF technique and CFD simulations. The fluids are ammonia water and fluorescein ammonia water solutions. The RS-SDR has a rotor 100mm in diameter and a thin circular cavity 0.10–0.15mm in height between the rotor and stator. Laminar flow conditions for rotation speeds up to 120 rpm and total flow rates up to 8 mL/min are considered. The fluorescein solution is injected from the second off-center hole into the cavity filled with the ammonia water supplied from the central hole. The LIF technique visualizes a spiral streak pattern formed downstream of the second injection hole. This streak pattern is analyzed to calculate the local mixedness of the two fluids. It is determined that the mixedness increases for lower flow rates, while it is less sensitive to rotation speed and cavity height. The CFD simulations indicate that the spiral streak pattern is deformed and stretched in the radial direction to form a densely layered structure of the two fluids. The development of the mixedness along the streak pattern is correlated well with Reinlet/Recavity, where Reinlet and Recavity are the Reynolds numbers for the injected flow and the azimuthal flow in the cavity, respectively. This Reynolds number ratio is shown to be related to the Rossby number and the position and radius of the second injection hole. The proposed correlation is based on a linear combination of injection mixing and rotation mixing. The mixedness decreases with Reinlet/Recavity because the injection mixing decreases with Reinlet while the rotation mixing increases with Recavity.

    DOI

  • Terrestrial and microgravity experiments on onset of oscillatory thermocapillary-driven convection in hanging droplets

    Takumi Watanabe, Tomohiko Takakusagi, Ichiro Ueno, Hiroshi Kawamura, Koichi Nishino, Mitsuru Ohnishi, Masato Sakurai, Satoshi Matsumoto

    International Journal of Heat and Mass Transfer ( Elsevier )  123   945 - 9556   2018.08  [Refereed]

    Joint Work

     View Summary

    Thermocapillary-driven convection in a hanging droplet is experimentally investigated under normal- and micro-gravity conditions. A droplet is hung on a heated cylindrical rod facing downward, and another rod cooled is placed just beneath the droplet to create the designated temperature difference between both ends of the droplet. A transition of the flow field from a two-dimensional axisymmetric `steady' flow to three-dimensional time-dependent `oscillatory' ones by increasing temperature difference is realized. The oscillatory flow is accompanied with thermal waves due to so-called hydrothermal wave (HTW) instability, which propagates over the free surface at a constant frequency. The present study aims to understand the transition conditions of the flow from the steady to the oscillatory ones, and to characterize the convective field inside the droplet with the HTW by imposing a range of temperature differences. We discuss the transition condition and the flow fields in the oscillatory regimes after the transition obtained in the terrestrial and on-orbit experiments in `Kibo,' the Japanese Experiment Module aboard the International Space Station.

    DOI

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Review Papers 【 display / non-display

  • In focus: JEREMI, Advancements in understanding Marangoni instabilities and particle accumulations under μ-g conditions

    European Low Gravity Research Association (ELGRA) Newsletter.     2016.12

    Introduction and explanation (scientific journal)   Single Work

     View Summary

    日欧共同宇宙実験として準備が進められているJEREMI(Japanese European Research Experiment on Marangoni Instabilities)について、欧州微小重力研究機構(ELGRA)のニュースレターに掲載されたもの。

  • 特集記事 第4章 MEIS

    松本聡, 西野耕一, 上野一郎, 矢野大志, 河村洋

    International Journal of Microgravity Science and Application   31 ( Supplement ) S51 - S79   2014.03

    Introduction and explanation (scientific journal)   Joint Work

     View Summary

    温度差駆動の液柱マランゴニ対流の不安定性に関する宇宙実験として実施されたMEIS(Marangoni Experiment in Space)について概説した特集記事。MEIS実験、宇宙実験用装置、実験運用、実験成果、参考文献より構成される。

Academic Awards Received 【 display / non-display

  • Paper Award of Japan Society of Mechanical Engineers

    1989.03    

Grant-in-Aid for Scientific Research 【 display / non-display

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2012.04  -   

Presentations 【 display / non-display

  • Space experiments and application of PIV techniques for the study of instability mechanisms of thermocapillary convection

    Koichi Nishino,Taishi Yano

    ISPIV17 (The 12th International Symposium on Particle Image Velocimetry, 2017.19-21)   (Busan (Korea) )  2017.06.22   Korean Society of Visualization

  • Application of subgrid stress model to volumetric PIV results for estimation of turbulence dissipation rate in a stirred mixer

    Proceedings of the 11th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics  (South Africa)  2015.07  

  • Numerical evaluation of influence of internal ribs on heat transfer in flat plate film cooling

    Proceedings of ASME Turbo Expo 2013: Turbine Technical Conference and Exposition  (Texas, USA)  2013.06.03  

Preferred joint research theme 【 display / non-display

  • Development and Application of Thermal and Fluid Measurement Techniques

Past of Collaboration and Commissioned Research 【 display / non-display

  • Study of Particle Analyzer Based on Particle Image Velocimetry

    Funded Research offered by Enterprises  

    Project Year: 2002  -  2002