请理论扎实的老师帮忙解惑:
刚接触 LES, 下面两段(in E),让我有了“错觉”:
如用 finite volume method,那么 LES 就不需 filter 了?!
我理解肯定是错的,但概念还不清晰,请各位老师帮我梳理一下,谢谢
“。。。When the finite volume method is employed to solve the instantaneous governing equations numerically the equations are integrated over control volumes, equivalent to convolution with a top-hat filter, therefore there is no need to apply a filter to the instantaneous equation explicitly and this is called
implicit filtering。。。”
“。。。The finite volume method has become the most popular numerical method for LES and when this numerical method is employed it is not necessary to apply a filter to the instantaneous equation explicitly, hence called implicit filtering。。。。”