Study at TCU


Official Title Associate Professor
Affiliation Dept. Mechanical Systems Engineering, Faculty of Science and Engineering
Profile My work focuses on developing the light-weight numerical simulation tools that can be applied to wide industry where the model-based development is needed. Especially, my specialty is fluid flows associated with the liquid/gas interface, for instance, liquid film flows, film coatings, breakup of droplets, material processing with melting and solidification. The fundamental approach in my research is formulating the efficient models of heat and mass transfer with applying an appropriate approximation.
Recently, our research group has working on application of a rapidly growing machine learning framework to the research field of fluid dynamics. By applying a physics-informed neural networks to the partial difference equation for the liquid film flows, the computational time to obtain the solution can be largely reduced.
As well as taking a role in teaching at TCU, I am an editorial member of Int. J. Microgravity Sci. Appl.
Research Field(Keyword & Summary)
  1. (1) Surface-tension-driven flows

    Fluid flows associated with a liquid/gas interface, including droplet breakups, liquid film flows, thermocapillary flows.

  2. (2) Microgravity science and application

    Fluid flow, heat and mass transfer, and material processing in the low-gravity environment. In the microgravity environment, the surface-tension-driven flow becomes dominant due to the absence of the buoyancy.

  3. (3) Data-driven fluid dynamics

    Application of the machine learning framework to the field of fluid dynamics simulation.

Representative Papers
  1. (1) Efficient implementation of two-phase flow solver based on THINC/SW and S-CLSVOF on unstructured meshes, International Journal of Microgravity Science and Application, (to appear) 2021.
  2. (2) Spatio-temporal thickness variation and transient Marangoni number in striations during spin coating, International Journal of Heat and Mass Transfer, Vol.154, 119678, 2020.
  3. (3) Semi-analytical solution for deformation of viscoelastic/elastic two-layered films on partially-opened substrate, International Journal of Solids and Structures, Vol.191-192, pp.588-600, 2020.
  4. (4) Large-scale separated vortex generated in a wake flow of Ahmed's body, Flow, Turbulence and Combustion, Vol.102, No.2, pp.373-388, 2018.
  5. (5) Splash and bounce of droplet on liquid film under low gravity, International Journal of Microgravity Science and Application, Vol.33, No.1, p.33110, 2016.
  6. (6) Double-peaked edge-bead in drying film of solvent-resin mixtures, Physics of Fluids, Vol.27, No.10, p.102105, 2015.
  7. (7) Linear stability of thermocapillary flow in partially confined half-zones, Physics of Fluids, Vol.19, No.4, p.044103, 2007.
  8. (8) Effect of centrifugal forces on the instability of the thermocapillary flow in partially confined half-zones, Microgravity Science and Technology, Vol.18, No.3/4, pp.132-136, 2006.
  9. (9) Numerical Simulation of Marangoni Flow in Partially Confined Half-Zone Liquid Bridge of Low-Prandtl-Number Fluids, Journal of Crystal Growth, Vol.266, pp.145-151, 2004.
Award Best paper award, Int. J. Microgravity Sci. Appl., 2016
Grant-in-Aid for Scientific Research Support: Japan Society for Promotion of Science (JSPS)
Research Grants/Projects including subsidies, donations, grants, etc. (1) Prediction of thickness undulations in coating of liquid films by means of physics-informed machine learning, Grant-in-Aid for Scientific Research (C), PI.
(2) Modeling and suppression of the striation formation arising during spincoating of photoresist films, Grant-in-Aid for Research Activity Start-up, PI.
Recruitment of research assistant(s) No
Affiliated academic society (Membership type) (1) Int. J. Microgravity Sci. Appl. (Editorial Board member)
(2) JSME (member)
(3) JSAE (member)
Education Field (Undergraduate level) Fluid dynamics, Thermodynamics
Education Field (Graduate level) Computational Fluid dynamics, Liquid film flows, Instability & transition of flows