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Thermal Engineering Lab
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A thermal engineering lab that investigates how turbulence and heat flow work.

AboutAbout the lab
Unraveling disorder in heat and flow, from the fundamentals
The Thermal Engineering Lab (Kawahara Lab) conducts basic research on elucidating a wide range of phenomena involving heat and fluids, and on their applications.
The lab belongs to the Thermal and Fluid Dynamics Division of the Department of Mechanical Science and Bioengineering, and pursues research in the field of nonlinear dynamics as the Thermal Engineering Group.
The lab studies turbulence and the transition to turbulence through both direct numerical simulation and experiments.
On the lab's website, the lab is introduced under the name "Kawahara Lab."
Key terms
- Turbulence
- Irregular, disordered flow. In this lab, it is the subject of study for things such as how heat and momentum are transported.
- Transition to turbulence
- The phenomenon in which an orderly flow changes into turbulence.
- Direct numerical simulation
- A method of reproducing a flow by solving the equations that describe fluid motion directly on a computer.
ResearchResearch themes
As the Thermal Engineering Group, Kawahara Lab conducts basic research in the field of nonlinear dynamics on elucidating phenomena involving heat and fluids and on their applications. The main research themes include elucidating the mechanisms of heat and momentum transport in turbulence and applying them to enhancing heat transfer and reducing flow resistance, analyzing and controlling turbulence based on periodic motions, and elucidating chaotic phenomena that arise in natural convection fields.
*Illustrative imageHeat, Mass, and Momentum Transport in Turbulence
The lab investigates how heat, mass, and momentum are transported within turbulence, using direct numerical simulation and experiments.
*Illustrative imageNumerical Simulation and Experiments on the Transition to Turbulence
The lab investigates the phenomenon of transition to turbulence using both direct numerical simulation and experiments.
*Illustrative imageUnderstanding and Controlling Turbulence Through Unstable Periodic Motions
The lab focuses on unstable periodic motions, aiming to understand and control turbulence.
*Illustrative imageDynamics of Vortex Structures in Turbulence and Its Transition
The lab analyzes the dynamics of vortex structures in turbulence and in the transition to turbulence.
MembersFaculty
The members of Kawahara Lab are faculty, research fellows, and doctoral, master's, and undergraduate students.As of 2025
- ProfessorGenta Kawahara
- LecturerShingo Motoki
- Assistant ProfessorMasaki Shimizu
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: “Boundary-Layer-Transition” Herbert.Oertel / www.prof.oertel.de / CC BY-SA 3.0 (cropped)
- Heat, Mass, and Momentum Transport in Turbulence: “False color image of the far field of a submerged turbulent jet” C. Fukushima and J. Westerweel, Technical University of Delft / CC BY 3.0 (cropped)
- Numerical Simulation and Experiments on the Transition to Turbulence: “Laminar-turbulent transition” Gary Settles / CC BY-SA 3.0 (cropped)
- Understanding and Controlling Turbulence Through Unstable Periodic Motions: “Helicopter blade tip vortex simulation by DLR” DLR / CC BY 3.0 (cropped)
- Dynamics of Vortex Structures in Turbulence and Its Transition: “A340 wake turbulence simulation” Deutsches Zentrum für Luft und Raumfahrt / CC BY 3.0 de (cropped)
- Related lab (Solid Mechanics Lab): “Origami ball” Angie from Sawara, Chiba-ken, Japan / CC BY 2.0 (cropped)
- Related lab (Materials Physics Lab): “Transmission electron microscope (Morgagni 268D) pl” Pleple2000 / CC BY-SA 3.0 (cropped)
- Related lab (Molecular Fluid Dynamics Lab): “Microfluidics” Richard Wheeler (Zephyris) / CC BY-SA 3.0 (cropped)
- Related lab (Human Motor Control Lab): “Halodi Robotics' Perception Engineer With a Humanoid Collaborative Robot” Nicholas-halodi / CC BY-SA 4.0 (cropped)
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