Light's new trick is fancier than a boring push: It created the more complicated force called lift, evident when a flow in one direction moves an object perpendicularly.
但是光的新特性比单纯的推力要高级:光能产生这种更复杂的作用力-提拉力,很显著的例子是一个方向的光通量可以使物体垂直移动。
Golf surface of small, yea, also can have prompted separation function, but the bumps of the flow interference some difficult to control, causing some lateral force (also can call lift).
高尔夫球表面的小突起,也能起到促使分离的作用,但突起对流动的干扰有些难以控制,造成一些侧向力(也可以叫升力)。
The lift force due to the action of jet flow is analysed and the conditions of improving the safety factors of apron slab are presented.
分析了使护坦板块失稳的上举力的成因; 指出了增加护坦板稳定性的条件。
All of the aerodynamic force must be produced in the absence of any incident flow, meaning lift can only be produced by the powered reciprocating motion of the wing.
所有的空气动力都必须在缺乏任何迎流的情况下产生,意味着只可能通过翼的有动力作用的往复运动来产生提升。
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。
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。
应用推荐