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-   -   caracteristic turbulence time in LES (http://www.cfd-online.com/Forums/fluent/34632-caracteristic-turbulence-time-les.html)

skippy September 16, 2004 10:51

caracteristic turbulence time in LES
 
Hi all, My points of interest in CFD are chemical engineering applications (specially turbulent reacting flows and turbulent precipitation/crystallization). In those fields, the caracteristic time of turbulence is of importance for it has to be compared with the chemical reaction time. In my former runs with RANSE, I was used to use the ratio k/epsilon as the caracteristic turbulence time. But what about in LES calculations ??? As I'm pretty new in LES, can anyone can give me some advices ? THX


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