UKAI Takahiro

写真a

Title

Assistant Professor

Research Fields, Keywords

Compressible flow, Flow visualization, Flow control

Profile

I was awarded a B.Eng. in Mechanical Engineering from Aitch Institute of Technology, Japan in 2005, and spent five years working for a company which develops the hydraulic machines before starting my Master project. During this period, I developed a compact hydraulic solenoid valve. In my Master and Ph.D. projects, I worked on three research topics; the development of the pressure measurement techniques using a ballistic range facility for sonic boom research, shock-turbulence interaction phenomenon for supersonic transports, and flow mechanism within a combustion chamber for scramjet engines. I was awarded a Ph.D. in Aerospace Engineering from Tohoku University, Japan in 2015. I then took Marie-curie research fellowship from European Commission and worked on flow control techniques by laser-induced gas breakdown in The University of Glasgow for two years. Since 2018, I am Assistant Professor in Osaka Institute of Technology, Japan. I am currently working on the gas-solid two phase flow under Martian envelopment and the development of flow diagnostics technique based on Schlieren photograph.
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Graduate School 【 display / non-display 】

  • Tohoku University  Graduate School, Division of Engineering  Aerospace Engineering  Master's Course  Completed  JAPAN

  • Tohoku University  Graduate School, Division of Engineering  Aerospace Engineering  Doctor's Course  Completed  JAPAN

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Committee Memberships 【 display / non-display 】

  • 2016.01
    -
    2016.07

      Local organising committee

  • 2017.09
    -
    2018.03

      Local organising committee

  • 2019.04
    -
    2020.05

      Local organising committee

  • 2020.10
    -
    2021.04

      Local organising committee

  • 2021.10
    -
    2022.04

      Local organising committee

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Research field 【 display / non-display 】

  • Compressible flow

  • Flow visualization

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Qualification acquired 【 display / non-display 】

  • Air Pressure Device Assembly Skill Person (highest quality, 1-2 class)

  • Hydraulic System Adjustment Skill Person (highest quality, 1-2 class)

  • Machine and Plant Drafting Skill Person (1-2 class)

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Papers 【 display / non-display 】

  • Effectiveness of a supersonic jet-jet interaction technique on flow structure in an underxepanded jet impinging on a perpendicular plate

    M. Kobayashi, T. Ukai  ( Multiple Authorship )

    Acta Astronautica   195   163 - 168   2022.06

    Research paper (scientific journal)  English

    DOI

  • Surface and spatial flow structure of an underexpanded jet with vertical jet interactions impinging on perpendicular and inclined plates

    M. Kobayashi, T. Ukai  ( Multiple Authorship )

    AIAA SCITECH 2022 Forum     2021.12

    Research paper (international conference proceedings)  English

    DOI

  • The principle and characteristics of an image fibre Background Oriented Schlieren (Fibre BOS) technique for time-resolved three-dimensional unsteady density measurements

    T. Ukai  ( Single Author )

    Experiments in Fluids   60 ( 170 )   2021.07

    Research paper (scientific journal)  English

    DOI

  • Thermal fluctuation characteristics around a nanosecond pulsed dielectric barrier discharge plasma actuator using a frequency analysis based on Schlieren images

    T. Ukai, K. Kontis  ( Multiple Authorship )

    Energies   13 ( 3 )   2020.02

    Research paper (scientific journal)  English

  • Characterization of a novel open-ended shock tube facility based on detonation transmission tubing

    G. Li, T. Ukai, K. Kontis  ( Multiple Authorship )

    Aerospace Science and Technology   94 ( 105388 )   2019.09

    Research paper (scientific journal)  English

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Research Grants and Projects 【 display / non-display 】

  • Estimation for regolith diffusion due to impinging hot plume

    Japan Society for the Promotion of Science  Bilateral Joint Research Projects/Seminars

    Project Year：2021.04  -  Now 

  • The development of a pressure estimation method based on Schlieren coupling of CFD

    Japan Society for the Promotion of Science  KAHENHI

    Project Year：2020.04  -  Now 

  • Project Year：2015.08  -  2017.07 

  • Project Year：2013.11  -  2014.09 

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Presentations 【 display / non-display 】

  • Particle motion due to a surface shape in jet-particle interaction

    R. Hata, T. Ukai

    International conference  33rd International Symposium on Space Technology and Science  Oral Presentation(general)

    2022.02
    -
    2022.03

  • The effects of time scale on the interaction between the pressure waveforms and turbulence

    H. Nakagawa, T. Ukai

    International conference  33rd International Symposium on Space Technology and Science  Oral Presentation(general)

    2022.02
    -
    2022.03

  • Asymmetrical unsteady flow field due to a supersonic impinging jet controlled by fluidic injectors

    M. Kobayashi, T. Ukai

    International conference  33rd International Symposium on Space Technology and Science  Oral Presentation(general)

    2022.02
    -
    2022.03

  • Surface and spatial flow structure of an underexpanded jet with vertical jet interactions impinging on perpendicular and inclined plates

    M. Kobayashi, T. Ukai

    International conference  AIAA SCITECH 2022 Forum  Other

    2022.01
    　
    　

  • The Numerical and Experimental Investigations of the Effects of the Pressure Rise Time on the Turbulent Interaction

    H. Nakagawa, T. Ukai, K. Ohtani

    International conference  18th International Conference on Flow Dynamics  Other

    2021.10
    　
    　

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