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如题,现在有一个完全发展湍流的管流的速度profile(只在某一个瞬时时刻),想将其映射到另一个管流模型作为入口,并用瞬态求解器求解。请问这样做,在新模型中会得到随机湍流嘛?
数值上,湍流的出现主要取决于精度。在FVM这种精度不高的情况下须添加随机扰动来制造湍流同时进行维持。我不确定你这种情况湍流会不会维持。你可以试试