摘要
从不可压Navier—stokes方程出发,分析二维湍流运动固体表面“搓”出涡量的过程,并求得其涡量源强度和拟涡能扩散强度。
This paper begins with Navier-Stolces equation. The process of twining out vorticity near the body surface in two dimensional turbulent flow is analysed, and the vorticity intensity and the quasivortex energy diffusion intensity are obtained.
关键词
涡量
二维湍流
湍流扩散
vorticity
vorticity field
vor ticity intensity quasi-vortex energy diffusion intensity
no slip condition
