CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   Main CFD Forum (https://www.cfd-online.com/Forums/main/)
-   -   independence in Large EDDy simulation (https://www.cfd-online.com/Forums/main/189930-independence-large-eddy-simulation.html)

medaouarwalid June 30, 2017 14:31

independence in Large EDDy simulation
 
when doing a simulation with the Large Eddy Simulation , should i do only an independence study of the grid or for the time step also ?

FMDenaro June 30, 2017 14:41

Quote:

Originally Posted by medaouarwalid (Post 655449)
when doing a simulation with the Large Eddy Simulation , should i do only an independence study of the grid or for the time step also ?

If you use an implicit filtering, by refining the spatial grid you cannot have convergence to a LES solution. As the time step is concerned, it is very small in LES, similarily to the DNS.


All times are GMT -4. The time now is 17:20.