Density gradient
Jet fluid (passive scalar)
LES of jet mixing
in supersonic crossflows
Kawai & Lele, AIAA J. 2010

Center for Next Generation Aircraft Research

Society for high Reynolds number aerodynamics

Welcome to Kawai Laboratory at Tohoku University

Welcome to Kawai Laboratory (Aerodynamic Design Research Group) at the Department of Aerospace Engineering, Tohoku University.
Our research draws from theoretical analysis, computational physics, data science, and high-performance computing to develop novel high-fidelity numerical simulation techniques for uncovering the fundamental flow physics underlying complex compressible, multi-scale and, multi-physics flows in aerospace engineering and also for developing next-generation aircraft aerodynamic design tools. Our research interests broadly include in the fields of fluid mechanics, with an emphasis on compressible flow, turbulence, shock waves, mixing and combustion, high-fidelity numerical methods, physical modeling, machine learning, uncertainty quantification, and other related topics in the aerospace engineering. Details of the on-going and past research topics are in Research.
Our group is also working on MEXT Program for Promoting Researches on the Supercomputer Fugaku, Leading research on innovative aircraft design technologies to replace flight test, where we conduct the first high-fidelity simulation around full aircraft by using state-of-the-art computational physics & Fugaku to lead innovative aircraft design.

Compressible flow physics and computational engineering in the Kawai Laboratory

What's New

Check out our new paper, "Wall modeling for large-eddy simulation on non-body-conforming Cartesian grids," published in Physical Review Fluids. This paper proposes an approach of wall-modeled large-eddy simulation (WMLES) on non-body-conforming Cartesian grids.
Our Fugaku Aircraft Project under Program for Promoting Research on the Supercomputer Fugaku co-organizes the 5th HPC workshop (online) on Oct. 22, 2021. Recent results obtained by the Fugaku Aircraft Project will be presented.
Check out our new paper, "Analysis and robust method for source-term modeling of vortex generator," published in Journal of Aircraft. This paper investigates the validity of the thin-airfoil theory for source-term modeling of vortex generators and proposes the modeling that improves the robustness and accuracy.
Our new paper, "Visualization of large-scale high-fidelity LES data in aeronautics (in Japanese)," was published in the Journal of the Visualization Society of Japan. The large-scale data visualization under our Fugaku Aircraft Project using supercomputer Fugaku is presented.
Kawai (Prof.) is invited to 5th Advance Simulation Seminar on Oct. 6, 2021 and give a seminar talk on large-eddy simulation of compressible flows.
Congratulations to Maruyama (Undergraduate student) for receiving the JSASS Excellent Presentation Awards at 53st JSASS fluid dynamics conference.
Congratulations to Hirai (Ph.D. student) for receiving the JSPS Research Fellowships for Young Scientists (DC2)!
Congratulations to Maruyama (Undergraduate student) for the Early Graduation and receiving the B.S.!
DNS database of heated transcritical and unheated non-transcritical turbulent boundary layers at supercritical pressures by Kawai, Journal of Fluid Mechanics (2019) is now available at Flow Database.
Kawai (Prof.) gives an open lecture on "Numerical simulation of fluid flows: next-generation predictive science and aircraft development" at the Tohoku University Open Campus 2021 on July 28th and 29th, 2021.
Tamaki (Assis. Prof.), Asada (Proj. Assis. Prof.), Hirai (D2), Iwatani (M1), and Maruyama (B4) from our laboratory presented their work at the JSASS fluid dynamics conference 2021 (online)
Kawai (Prof.) was invited to the Society of Automotive Engineers of Japan, Inc. and gave a seminar talk on our recent study.
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