Another numerical result with the boundary absorption is compared with the theoretical solution of scattering problem for a vertical cylinder.

具有岸边吸收作用的数值结果和具有边界吸收的圆柱绕射问题的分析解进行比较。

Rankine source method (constant panel) is developed to calculate the action of ship generated waves on the vertical cylinder in finite depth water.

本文的第三部分内容为计算船行波对水中直立圆柱的作用（忽略圆柱产生的绕射势对船体的影响）。

The utility model comprises a vertical cylinder hoisting device and a hoisting coupling head arranged on one side of the vertical cylinder hoisting device.

其包括立式缸筒起重装置以及设置在立式缸 筒起重装置一侧的起重连接头。

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。

Well, it is sticking straight out, but sticking straight out in a slightly different way from what happens with a sphere. See, the sides of a cylinder are vertical.

它垂直于其表面指向外面，但这与球面法向量的指向的方式有点不同，圆柱的边缘是竖直的。