Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
如题,最近想在风沙两相流模拟中设置多重网格加速收敛,使用的是速度压力求解器、coupled to simple,不可压非定常流动,最小时间步长0.001s。 看help文件中有这几种方法,我也不知道适合用哪种,BCGSTAB应该可以,那可不可以用CG呢?
如果不是可压缩/高超,不能用BCGSTAB,可以用CG。CG是对称矩阵求解器,BCGSTAB是非对称矩阵求解其。不可压缩压力方程是对称矩阵,只能用CG和AMG
@东岳 好的,谢谢东岳老师!