Hiromichi KOBAYASHI

Research Description

Subgrid-scale modeling in LES for complex geometry, Study on turbulent phenomena of MHD flows, MHD power generation using plasma and liquid metal, Coupled dynamics of two fluid model in superfluid 4He, Chiral turbulence with symmetry braking

Material

Selected Journal Publications

1. Inagaki, K.,Kobayashi, H. (2020) Role of various scale-similarity models in stabilized mixed subgrid-scale model. Physics of Fluids  31: 075108

    

2. Yui, S., Kobayashi, H., Tsubota, M., Guo. W. (2020) Fully Coupled Two-Fluid Dynamics in Superfluid ⁴He: Anomalous Anisotropic Velocity Fluctuations in Counterflow.  Physical Review Letters 124: 155301

    

3. Klein, M, Ketterl, S., Engelmann, L., Kempf, A., Kobayashi, H. (2020) Regularised, parameter free scale similarity type models for Large Eddy Simulation. International Journal of Heat and Fluid Flow 81: 108496

    

4. Kobayashi, H., Yui, S., Tsubota, M. (2019) Numerical Study on Entrance Length in Thermal Counterflow of Superfluid ⁴He. Journal of Low Temperature Physics 196: 35-41

    

5. Kobayashi, H. (2018) Improvement of SGS model using scale-similarity model based on analysis of SGS force and SGS energy transfer. International Journal of Heat and Fluid Flow 72: 329-336

    

6. Yui, S., Tsubota, M., Kobayashi, H. (2018) Three-Dimensional Coupled Dynamics of the Two-Fluid Model in Superfluid ⁴He: Deformed Velocity Profile of Normal Fluid in Thermal Counterflow.  Physical Review Letters 120: 155301

    

7. Kobayashi, H., Okuno, Y. (2016) Turbulent and Electrical Phenomena in a Liquid Metal MHD Energy Conversion Device under Various Load Conditions. IEEJ Transactions on Power and Energy 136: 773-778

    

8. Sugimoto N., Ishioka K., Kobayashi H., and Shimomura Y. (2015) Cyclone-anticyclone asymmetry in gravity wave radiation from a co-rotating vortex pair in rotating shallow water. Journal of Fluid Mechanics 772: 80-106.

    

9. Yoshizawa, A., Kobayashi, H., Sugimoto, N., Yokoi, N., Shimomura, Y. (2013) A Reynolds-averaged turbulence modeling approach to the maintenance of the Venus superrotation. Geophysical & Astrophysical Fluid Dynamics 107, 6: 614-639

    

10. Kobayashi, H., Shionoya, H., Okuno, Y.  (2012)  Turbulent duct flows in a liquid metal magnetohydrodynamic power generator.  Journal of Fluid Mechanics  713: 243-270 

    

11. Onodera, N., Aoki, T.Kobayashi, H. (2011) Large-Eddy Simulation of Turbulent Channel Flows with Conservative IDO Scheme. Journal of Computational Physics 230, 14: 5785-5805

    

12. Kobayashi, H., Matsumoto, E., Fukushima, N., Tanahashi, M., Miyauchi, T. (2011) Statistical properties of the local structure of homogeneous isotropic turbulence and turbulent channel flows. Journal of Turbulence 12, 11: 1-16

    

13. Kobayashi, H., Ham, F., Wu, X. (2008) Application of a local SGS model based on coherent structures to complex geometries. Int J Heat Fluid Flow 29: 640- 653

    

14. Kobayashi, H. (2008) Large eddy simulation of magnetohydrodynamic turbulent duct flows. Phys Fluids 20: 015102

    

15. Kobayashi, H.  (2006)  Large eddy simulation of magnetohydrodynamic turbulent channel flows with local subgrid-scale model based on coherent structures  Phys. Fluids  18: 045107 

    

16. Kobayashi, H. (2005) The subgrid-scale models based on coherent structures for rotating homogeneous turbulence and turbulent channel flow. Phys Fluids 17: 045104

    

17. Kobayashi, H., Shimomura, Y. (2001) The Performance of Dynamic Subgrid-Scale Models in the Large Eddy Simulation of Rotating Homogeneous Turbulence. Phys Fluids 13: 2350-2360

    

18. Kobayashi, H., Okuno, Y, Kabashima, S. (1998) Three-Dimensional Structures of MHD Flow in a Disk Generator. IEEE Trans Plasma Science 26: 1526-1531