[qi.yang@polimi.it]

The production of kinetic energy near wall cell is referred by which paper?

G0[celli] +=
w
*(nutw[facei] + nuw[facei])
*magGradUw[facei]
*Cmu25*sqrt(k[celli])
/(kappa_*y[facei]);

I found Spalding's formula is not the same as above (Pk =Cmu^0.25*Utau^2*U/y). Anybody knows this issue?

[qi.yang@polimi.it]

Nobody is interested in this issue?

[CFD_10]

You can find the answer here: Wall functions - questions about implementation

[HPE]

most of the time papers do not equate to the actual implementations. some code involve heuristic changes based on extensive number of tests in various scenarios.

[qi.yang@polimi.it]

Originally Posted by CFD_10

You can find the answer here: Wall functions - questions about implementation

Thanks for your reply. It helps a lot.

[qi.yang@polimi.it]

Originally Posted by HPE

most of the time papers do not equate to the actual implementations. some code involve heuristic changes based on extensive number of tests in various scenarios.

Yes. I am confused that the difference between those two methods for calculating Gk which I found in one paper. It seems that they are consistent with each other. But after I used those two formula, which leads to different results.

[qi.yang@polimi.it]

Originally Posted by qi.yang@polimi.it

Yes. I am confused that the difference between those two methods for calculating Gk which I found in one paper. It seems that they are consistent with each other. But after I used those two formula, which leads to different results.

Nobody can explain this issue?