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August 27, 2012, 08:47 |
Question about LES
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#1 |
Senior Member
lnk
Join Date: Feb 2011
Location: Switzerland
Posts: 118
Rep Power: 15 |
Hi
When refine the grid. the LES result changes. That means the result is grid dependent. But why engineers' still working with that grid? Best, lnk |
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August 27, 2012, 08:54 |
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#2 | |
Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,768
Rep Power: 71 |
Quote:
For explicit filtering LES, the grid refinemente reduces the local truncation error of scheme and the solution converges to a filtered solution, not to the DNS Engineers (that practically use only implicit filtering LES) work with the grid the consider quite fine to resolve the energy containing structure for their problem. |
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