CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   Energy pile up (http://www.cfd-online.com/Forums/main/4516-energy-pile-up.html)

jxia March 10, 2002 16:27

Energy pile up
 
I am doing compressible LES for the decay of turbulence energy(Comte-Bellot and Corrsin experiment). Smagorinsky SGS model is applied and no explicit filter is used. I found the energy piled up in the high frequency area, even I set Fourier coefficients to zero for high frequency at every time step(as advised in "Toward the large-eddy simulation of compressible turbulent flows", JFM vol.238. pp.155-185) . Any suggestion is appreciated.


All times are GMT -4. The time now is 20:57.