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@AppleKiller OpenFOAM的fvm::laplacian离散使用了自身单元和相邻单元值计算面梯度，已经可以有效避免棋盘压力了，也就不需要RC插值。目前的投影法应该是在计算laplacian(P)时使用了类似的操作。反而是目前对中间投影速度，或者说是openfoam中的HbyA的插值方式研究的挺多。
@李东岳 东岳老师，您有什么好的解决思路吗？
@李东岳 感谢东岳老师解答
