压力振荡 meaning in Chinese
pressure oscillation
Examples
- These instabilities manifest themselves in irregular combustion and in pressure oscillations .
这种不稳定现象证明其本身存在不规则燃烧和压力振荡。 - Large - eddy simulation of pressure oscillations in a dump combustor
突扩燃烧室低频压力振荡的大涡模拟 - Study on combustion pressure oscillation in vehicle diesel engines
车用直喷式柴油机燃烧压力振荡控制的研究 - 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。 - The main numerical method of this code is coming from scheme ( jameson , schimit and turkel ) : using cell - centered finite volume method as spatial discretization tools , and a system of ordinary differential equations for time variable is obtained , which is solved by utilizing five - step runge - kutta scheme as time marching method , introducing artificial dissipation to damp high frequency oscillations near the shock and stagnation point
本论文采用欧拉方程作为控制方程，利用中心有限体积法进行空间离散，得到对时间变量的常微分方程组，采用龙格库塔多步法进行时间积分，加入人工粘性以消除激波和驻点附近的压力振荡等方法来对naca0012翼型的实际流动进行并行数值模拟。