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 to the eye. 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

Mar. 18-20, 2024
Prof. Nakamura gave the Keynote Speech at EUROMECH Colloquium 631 "Control of skin friction and convective heat transfer in wall-bounded flows" held in Madrid, Spain.
Mar. 13-15, 2024
Prof. Funami presented the research at the 63rd Aero Engine and Space Propulsion Conference held in Sapporo.
Feb. 26, 2024
Mr. Masuda, Mr. Matsuzaki, Mr. Sakaino, Mr. Sogabe, and Mr. Miyagawa presented their researches at the Graduation Thesis Presentation of National Defense Academy.
Jan. 31, 2024
Mr. Yoshida of doctoral course student presented his thesis at the Public Hearing.
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)