Outline of Research

 In our laboratory, we have been conducting basic research mainly focused on convective heat transfer. In many cases, fluid flow exhibits a very complex feature called “turbulence”. Therefore, convective heat transfer actually fluctuates in complicated manners in time and space, although such fluctuation is not visible. We have experimentally investigated the spatial and temporal nature of turbulent heat transfer in an effort to improve the reliability of thermal design and the thermal efficiency of equipment.
 Also, we have been investigated passive flow control of a cylinder by attaching axisymmetric protrusions in order to reduce the drag force and to suppress the fluctuating force caused by vortex shedding. top_image


Topics

May 16, 2025
Dr. Yoshida received the 2024 Heat Transfer Society of Japan Encouragement Award!
May 14-17, 2025
Prof. Nakamura presented our research at the 62th National Heat Transfer Symposium of Japan held in Okinawa.
Feb. 25, 2025
Mr. Suzuki, Mr. Noda, Mr. Shindo presented their researches at the Graduation Thesis Presentation of National Defense Academy.
Nov. 26, 2024
The online version of the paper "High spatiotemporal resolution measurement of water flow boiling heat transfer in a horizontal square minichannel using infrared thermography" has been published.
Nov. 15, 2024
Mr. Yoshida received his Ph.D. degree.
Contact: 1-10-20 Hashirimizu, Yokosuka, Kanagawa, 239-8686, Japan
Department of Mechanical Engineering, National Defense Academy
E-mail: nhajime(at)nda.ac.jp (H. Nakamura)