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第一次在发帖,请问一下各位老师,就是想在openfoam中计算一个场值的laplac的值,用openfoam中自带的laplac显式计算的值的结果容易较大,希望能够调用临近单元的再一个临近单元来进行更高阶的计算来防止数值过大的问题,请问这种方法怎么实现呢,谢谢
用openfoam中自带的laplac显式计算的值的结果容易较大
什么意思
@李东岳 就是我计算出来的场值的值较小,网格大小也很小,用默认的显式laplac计算之后数值会很大,就想着可不可能是因为显式laplac计算参照的只有临近单元导致数值会有波动的问题
我不是很理解。不过如果你不想写laplacian,你可以写div(grad())