free surface vortex [流] 自由面涡
vortex surface 旋涡面形
bound vortex surface 附着涡面
free vortex surface 自由涡面
This, the researchers believe, is caused by the surface of the water smoothing out a vortex of air coming off the flying fish and reducing drag.
研究者相信,这源于水面平滑了飞鱼迎面的风涡,降低了阻力。
The surface of propeller and its trailing vortex is divided into a number of small hyperboloidal quadrilateral panels with constant source sink and doublet distributions.
螺旋桨表面和它的尾涡面离散为四边形双曲面元,每个面元上布置等强度偶极子和源汇分布。
The results show that the interaction between a viscous vortex ring and a free surface is different from the inviscid one.
结果表明:由于粘性的存在,使得涡环与自由表面的相互作用与无粘情形相比有许多不同。
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