[aja1345]

Hi,

I am simulating an .

Moreover, I tried different mesh topologies and all give me almost the same number. In fact, BL is not captured well. RE is equal to 4.4* 10^5 and according to mentioned formula in the following link, i computed y_1(first cell height) by using Y+=30 and 60.


But in theses two cases(Y+=30 and Y+=60), BL is not captured well. Why? In the other words, according to the following Figure, tadjacent wall. And also, I studied the following link:



For this reason, performance parameters are not validated well. In fact, there is difference with the experimental value. This difference is not big but it is not good! I think that it is difficult for capturing BL by using low Re turbulence model( for example, K-e)!!!

I am grateful that guide me about these problems.

Thanks.

Best.

Aja

[aja1345]

Can no-one guide?