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使用buoyantBoussinesqPimpleFoam求解器进行大涡模拟时,有个问题想不明白,在buoyantBoussinesqPimpleFoam求解器中的TEqn.H头文件中,有效热扩散率alphaEff=alphat+alpha,其中alphat=nut/prt; 在LES计算中nut指亚格子尺度的湍流粘度,值很小(相比RANS计算中的nut),这样计算出来的alphat就会很小,请问这会导致流场内传热过程有问题吗?
为什么会有问题?LES和RANS不是同一个层面的东西呀
@cccrrryyy 嗯呢,已经明白了~