对某文章关于piso循环的一段话不太明白

[yuan_neu]

The solution for pressure equation utilizes the PISO (pressure implicit with split operator) based PIMPLE method, together with a conjugate gradient methods for coupled mass and momentum conservation equations, which is specifically suited to transient flow.

文章用的是openfoam
里面提到的conjugate gradient methods这个该怎么解读

[李东岳]

conjugate gradient methods

这个是矩阵求解器啊。PBiCGStab，PBiCG这种的。

[yuan_neu]

@东岳 对，后来查看了一下userguide 中的solver部分，里面PCG的全称是preconditioned conjugate gradient，就一下明白了