Department of Engineering, University of Tokyo
Department of Engineering, Keio University
Institute of Space and Astronautical Science
出版者
航空宇宙技術研究所
出版者（英）
National Aerospace Laboratory(NAL)
雑誌名
航空宇宙技術研究所特別資料
雑誌名(英)
Special Publication of National Aerospace Laboratory SP-7
巻
7
ページ
215 - 228
発行年
1986-12
抄録（英）
By solving the three-dimensional incompressible Navier-Stokes equations, the development of three-dimensionality was investigated in a flow around a circular cylinder placed between side walls. Also, the case of a circular cylinder with an infinite spanwise length was treated using a periodic boundary condition. Initial vortex development and the development of spanwise vortical-pattern are intensively visualized to see the three-dimensional structure. In the initial stage, the flow was almost two-dimensional. The two-dimensionality was kept in the first separation but as the flow developed, the wake became strongly three-dimensional. Also, in the developed stage, a large horse-shoe vortex was observed in front of the cylinder near the wall.
二次元断面をもつ有限長の三次元物体をすぎる流れの構造
nalsp0007027.pdf
(986.74KB)
