area of interests

computational fluid dynamics, high-speed turbulent mixing, combustion modeling, flow instability, transition and control of turbulent flows.

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about my research

My current research focuses on the detailed physical understanding of compressible turbulent mixing and combustion using large-eddy simulation and the developing high-order discontinuity capturing numerics.

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current research topics

• High-order discontinuity-capturing scheme (LADG scheme)
A simple and efficient localized artificial diffusivity scheme is developed for the purpose of capturing discontinuities using a high-order compact differencing scheme. The method is intended for use with LES of compressible turbulent flows involving shocks, contact surfaces, material discontinuities, turbulence and their interactions.

Shu-Osher problem

Double Mach reflection

• LES of jet mixing in a supersonic crossflow
High-order compact differencing based LES coupled with localized artificial diffusivity are employed to get further insights into the physics of an under-expanded sonic jet mixing into a supersonic crossflow.

• LES of non-premixed turbulent combustion
LES of non-premixed turbulent combustion in a supersonic crossflow is performed in order to understand the physics of fuel mixing and its combustion including the mechanisms of local ignition and extinction.

超音速流気流中の音速ジェット乱流混合と燃焼 (From Ben-Yakar et al., Physics of Fluids 2006)

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past research topics

• past major research topics

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