界面流速 meaning in English

interface velocity

For convenience of grid refinement implementation the nonstaggered grid system based on the structured orthogonal grid scheme is adopted . in order to eliminate the possible pressure wiggles when nonstaggered grid is used , except for the use of the momentum interpolation method ( small wiggles still appear when the method is adopted alone ) , a new method is proposed and applied in the same time . in the new method a pressure - gradient difference term is added to the flow velocity in each control volume interface when dealing with the pressure - correction equation
本文基于结构化正交网格，为便于实施网格加密，采用了变量同位存储的同位网格体系；为平抑该网格体系下的压力振荡问题，除采用动量插值方法外(单纯采用该方法不能完全平抑振荡) ，首次提出了在压力校正方程的界面流速中添加压力梯度差值项的方法，从而完全解决了建筑风场模拟中同位网格下可能出现的不合理压力场的问题。