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Computational Fluid Dynamics and Space Transportation Engineering Lab
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A lab that uses supercomputers to unravel complex flows, from combustion and rockets to atmospheric reentry.
AboutAbout the lab
Turning complex flows into designs through simulation.
The Computational Fluid Dynamics and Space Transportation Engineering Lab studies numerical simulation of flows using computers.
Its targets include a wide range of complex flows: turbulence, flows containing bubbles or sprays, combustion flames, and high-temperature gas flows around objects flying at high speed.
The lab develops its own computational methods and software, aiming at predictions that are useful for machine design.
Students connect from the lab to supercomputers at various institutions, and can experience everything from grid generation to computation and visualization of results.
Key terms
- Numerical simulation
- A method of solving the equations that describe flow on a computer in order to reproduce and study a phenomenon
- Turbulence
- Irregularly changing flow in which eddies of various sizes are mixed together. Most flows around us are turbulent
- Communication blackout
- A phenomenon in which high-temperature plasma forms around a spacecraft reentering the atmosphere, interrupting radio communication with the ground
NewsLab news
A paper estimating atmospheric density from the orbital data of ultra-small satellites was published in Aerospace Science and Technology
A paper on the combustion behavior of hypergolic fuels was published in Combustion Science and Technology
A paper from joint research with Hiroshima University and Mazda was published in Journal of Thermal Science and Technology
A fourth-year undergraduate student received the 2025 Hatakeyama Award from the Japan Society of Mechanical Engineers
A student received the Best Presentation Award at the Undergraduate Thesis Presentation Meeting of the Hokkaido Student Chapter of the Japan Society of Mechanical Engineers
ResearchResearch themes
The lab is divided into research groups such as reactive flows, rocket engine and aircraft aerodynamics, and high-speed fluid and high-temperature gas dynamics. Each group works on the research, development, and practical validation of numerical simulation in its field. The lab is pioneering numerical prediction methods for turbulence (LES) and models of complex flows involving chemical reactions and phase change, aiming at application to engineering design.
*Illustrative imageReactive Flow Simulation
The lab researches and develops simulations of time-varying flows such as turbulent combustion, phase change, and fluid machinery, with the goal of using them in engineering design. It also proposes improvements to models of turbulence, combustion, and gas-liquid interfaces, as well as to computational methods.
*Illustrative imageFlows in Rocket Engines and Aircraft
The lab studies flows involving chemical reactions, such as those in liquid rocket engines. It also deals with time-varying aerodynamic forces acting on aircraft and with aeroelasticity, the phenomenon in which wings vibrate due to aerodynamic forces.
*Illustrative imageCommunication Blackout During Reentry
The lab studies ways to reduce communication blackout, the loss of communication between a reentering spacecraft and the ground. Using large-scale computation and plasma wind tunnel experiments, it verifies the effects of the catalytic properties of capsule surface materials and of blowing cooling gas out from the surface.
MembersFaculty
The members of the Computational Fluid Dynamics and Space Transportation Engineering Lab consist of faculty, secretaries, and doctoral, master's, and undergraduate students.As of 2026
- Project ProfessorNobuyuki Oshima
- Associate ProfessorHiroshi Terashima
- Associate ProfessorYusuke Takahashi
VoicesStudent voices
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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: “LES Turbulent Velocity Field” Charlesreid1 / CC BY-SA 3.0 (cropped)
- Reactive Flow Simulation: “LESPremixedFlame” Andreas Kempf / CC BY-SA 3.0 (cropped)
- Flows in Rocket Engines and Aircraft: “F-1 Engine Test Firing” NASA Marshall Space Flight Center / Public domain (cropped)
- Communication Blackout During Reentry: “Heat shield test” NASA / Public domain (cropped)
- Related lab (Space Environment Systems Engineering Lab): “Rocket Engine Hot Fire” camelNotation / CC0 (cropped)
- Related lab (Space Environment Applied Engineering Lab): “Candle Flame in Microgravity” NASA / Public domain (cropped)
- Related lab (Flow Control Lab): “F-16XL Scamp Flow Visualization Test - GPN” NASA / Public domain (cropped)
- Related lab (Plasma Environmental Process Lab): “Plasma-lamp 2” Luc Viatour / CC BY-SA 3.0 (cropped)
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