动量损失 meaning in Chinese
loss of momentum
Examples
- Momentum deficit thickness
动量损失厚度 - Momentum loss thickness
动量损失厚度 - Moreover , the secondary wall - impingement distance should be properly reduced in order that the bump play a part in the formation of lean mixture with the increase of environmental pressure or density owing to both the increase of air entrainment , momentum losses and the decrease of the spray tip velocity and penetration
而且当压力或密度较高时，由于喷雾的空气卷吸量及动量损失增大，贯穿速度降低及贯穿距减小，为使bump发挥作用，应适当减小二次撞壁距离。 - The horizontal and vertical momentum loss caused by the shock of heavy rain in low - level wind shear of thunderstorms on the airframe and wing are analyzed , the water film thickness on the airframe and wings estimated , and the flight resistance resulted from raindrops - striking caused by the roughness of airplane when the heavy rain shocks the airplane is discussed
摘要分析了雷暴低空风切变中大雨滴冲击飞机的机身和机翼而引起的水平和垂直动量损失，估算了大雨累计在机身和机翼上的水膜厚度，并讨论了因遇到大雨雨滴冲撞而粗糙化的机体所产生的阻力。 - Firstly , based on n - s equation , the momentum differential equation （ contained centrifugal force ） is derived by simplification in boundary layer and then integrates the differential equation over the thickness of the boundary layer , the momentum integral equation is deduced . the dimensionless centrifugal factor is introduced , then the solution of the momentum integral equation is obtained . the dimensionless group is introduced to determined separation of boundary layer
本文首先根据粘性流体力学的一般方程，通过在边界层内进行量级比较，在所限定的范围内得到了含有离心力的边界层动量微分方程并给出其满足的边界条件，然后对该微分方程在边界层内积分得到离心泵叶轮边界层动量积分方程，在求解过程中引入了无量纲离心因子，并作了相应合理的假设，得出积分方程解的一般表达式，并引入以边界层动量损失厚度为主要特征量的无量纲参数对边界层分离进行评价。