人工粘性 meaning in Chinese
artificial viscosity
Examples
- Riemann solver and artificial viscosity in sph
解与人工粘性 - To ensure the numerical dissipation much smaller than the physical viscous terms , directional scaling of the artificial dissipation is achieved and proper boundary conditions are also introduced in this term
为保证高雷诺数下n - s方程的数值粘性远小于物理粘性,对人工粘性项进行了方向性修正并引入适当的边界条件。 - Three spatially discrete schemes about the convection terms of the n - s equations : the centered difference with artificial viscosity by jameson , the van leer scheme of flux vector splitting , and the roe scheme of flux difference splitting are studied respectively
3研究了n - s方程组中对流项的三种空间离散格式：改进的jameson中心+人工粘性格式、通量矢量分裂类vanleer格式和通量微分分裂类roe格式。 - 2d viscous grids are generated by solving the elliptic grid generation together with an algebraic method marching along the normal - to - wall direction . the 2d euler program based on jameson ' s central finite volume method is upgraded with modified artificial viscosity and time stepping schemes , etc . euler program become n - s program by adding b - l model
对基于中心有限体积法的二维euler流场解算程序进行了人工粘性和时间推进格式等方面的改进，并添加b - l模型，使之成为二维n - s流场解算程序。 - 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。