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Kawai-Asada-Kawai Lab
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The lab simulates flows on supercomputers and aims to bring innovation to aircraft development.
AboutAbout the lab
Understanding flow scientifically through simulation.
The Kawai-Asada-Kawai Lab studies high-fidelity computational fluid dynamics simulation that makes it possible to predict and control the complex flows around aircraft and spacecraft.
It aims to greatly reduce reliance on actual flight tests and bring digital innovation to the development of aircraft and spacecraft.
Based on compressible fluid dynamics, it covers a broad range of fields, from computational science to data-driven science and machine learning.
The lab conducts its research using cutting-edge supercomputers, including RIKEN's Fugaku.
Key terms
- Compressible fluid
- A fluid whose density changes, for example in high-speed flow. Flows around aircraft and spacecraft are examples
- Reynolds number
- A number expressing the ratio of the inertia of a flow to its viscosity. The larger it is, the more likely the flow is to become turbulent
- Wall-modeled LES
- An analysis approach in which large eddies are computed directly and the small-scale turbulence very close to the wall is represented by a model
NewsLab news
A master's student receives the Young CFD Investigator Award at ICCFD13
A master's student receives the Young Researcher Outstanding Presentation Award of the Japan Society of Fluid Mechanics at the Computational Fluid Dynamics Symposium
Prof. Kawai is elected a Fellow of the Japan Society of Fluid Mechanics
A paper on an LES wall model for predicting boundary layers undergoing transition to turbulence is published in AIAA Journal
A master's student receives the Young Researcher Outstanding Presentation Award at the Annual Meeting of the Japan Society of Fluid Mechanics
ResearchResearch themes
Aiming for academic research that competes with the world in quality and originality, the lab builds on fluid dynamics related to aerospace and mechanical engineering, especially compressible fluid dynamics. Its scope is broad, from theoretical research and next-generation numerical simulation to data science and machine learning.
*Illustrative imageDeveloping high-fidelity flow computation methods
Based on original ideas and theory, the lab develops numerical methods that can analyze a wide range of compressible flow phenomena with high fidelity, including turbulence, boundary layer transition, shock waves, multicomponent and multilayer flows, and magnetohydrodynamics.
*Illustrative imageSolving flows around aircraft
To analyze with high fidelity flows at the high Reynolds numbers of aircraft, which reach the order of 10^7, the lab studies wall-modeled LES, in which near-wall turbulence is modeled in an original way, and its practical use.
*Illustrative imageA solver that works just from the shape
The lab is developing FFVHC-ACE, a compressible flow solver that can perform robust, high-fidelity flow analysis simply by inputting geometry data. It is also being deployed in industry, including to aircraft manufacturers.
*Illustrative imageMaking sense of massive flow data
The lab aims to realize data-driven science that extracts key flow structures from the complex, time-varying flow data obtained from high-fidelity, large-scale flow analyses, and thereby advances the understanding of complex flow phenomena.
MembersFaculty
The members of the Kawai-Asada-Kawai Lab are faculty members, researchers, administrative assistants, and students in the doctoral, master's, and undergraduate programs.As of 2026
- ProfessorSoshi Kawai
- Assistant ProfessorHiroyuki Asada
- Assistant ProfessorShigetaka Kawai
- Project Assistant ProfessorHirotaka Maeyama
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Summit Simulates How Humans Will “Brake” During Mars Landing” OLCF / CC BY 2.0 (cropped)
- Developing high-fidelity flow computation methods: “CFD Shuttle” NASA / Public domain (cropped)
- Solving flows around aircraft: “X 48B model in wind tunnel” NASA/Jeff Caplan / Public domain (cropped)
- A solver that works just from the shape: “X-30 NASP-Computer Aided Design Computational Fluid Dynamics” 作者不詳 / Public domain (cropped)
- Making sense of massive flow data: “Vortex-street-1” Robert Cahalan, NASA/GSFC / Public domain (cropped)
- Related lab (Suzuki (Ken) Lab): “Ideenwelt EM2862 - Weight sensor - Strain gauge-91926” Raimond Spekking / CC BY-SA 4.0 (cropped)
- Related lab (Biwa Lab): “Flame-tube-resonance-overlay” MikeRun / CC BY-SA 4.0 (cropped)
- Related lab (Shoji Lab): “150 deg water contact angle” Plasmatreat Khoren / CC BY 3.0 (cropped)
- Related lab (Ohnishi-Sato (Shintaro) Lab): “Jet Propulsion Laboratory Plasma Flow Research Lab” NASA / Public domain (cropped)
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