numerical diffusion

基本解釋

Embedded grids are adopted to weaken the numerical diffusion of the wake and to apply the above boundary conditions.
爲(wèi)減少尾跡數(shù)值耗散和便於添加上述邊界條件，採用了嵌套網(wǎng)格方法。
To reduce the influence of the numerical diffusion on the computational results, such as decreasing the grid size has been used.
給出了分離器內(nèi)速度矢量圖，爲(wèi)減小數(shù)值偽擴(kuò)散對強(qiáng)鏇流動(dòng)的影響，採用了減少網(wǎng)絡(luò)尺寸等措施。
Standard numerical methods solving these equations often produce nonphysical oscillations, and upwind methods usually cause excessive numerical diffusion which smear the sharp fronts.
求解一般拋物方程所採用的標(biāo)準(zhǔn)有限元或有限差分法會(huì)産生難以接受的數(shù)值震蕩和數(shù)值彌散；