摘要
本文采用离散涡方法,数值模拟了二维自由剪切层流动中离散涡团的演变过程,共包含一千多个平板脱落离散涡和八十个替代平板的离散涡的计算,两股流动速度差为6m/s。计算结果表明:在剪切层流场沿下游的不同位置上,离散涡团有着不同的合并形式。
In this paper , the evolution of discrete vortex blobs in 2-D free shear layers is simulated numerically by the method of discrete vortex. More than a thousand of moving discrete vortices amd eighty fixed discrete vortices which replace the upstream wall are used in computation. The results show that some different forms of evolution may appear simultaneously in the different areas of folw.
关键词
自由剪切层
离散涡
合并
free shear layers
discrete vortex amalgamation
