surface vortex的意思|示意

The nonlinear free surface boundary condition is considered and the hydrodynamics forces of the hydrofoil near the free surface are calculated by the submerged vortex lattice method.

考虑到非线性的自由液面边界条件，用下潜涡环栅格法求解水翼绕流问题。

The leading edge vortex breakdown can be delayed using supplements to change the flow field over upper surface of the wing.

利用附加的小辅助件，改变翼面上方的流场，使机翼前缘肌体涡推迟破裂。

When waves act on a vertical cylinder, there are in-line and lift forces. They are caused by the viscous effect, which induces the surface frictional force and flow separation and vortex shedding.

通常将垂直柱体在波浪场中的受力分为正向力(顺流力)与升力，它们是由干粘性流绕钝体产生的摩擦阻力和由于水流绕柱分离产生涡漩而形成柱表面压力分布的不均匀变化而造成的。

The coordinates of grids on the wing surface and dipole strength on the trailing vortex surface were changed with respect to time-stepping.

翼表面网格坐标和尾涡面上的偶极强度随时间步进变化。

The desingularization smoothing parameter is introduced in calculating the induced velocity on trailing vortex surface.

在诱导速度计算中引入了非奇异光滑参数。

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。