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Abstract:
Two related observations lead us to propose a new approach for embedding boundaries in the context of LES. In this approach, we treat the wall by filtering through it'. A homogeneous or nearly homogeneous filter is applied to the flow field including the embedded boundary. As a result, the boundary is no longer a sharp interface, but is diffused across the filter width. To recover a Direct Numerical Simulation (DNS), the filter width is made small enough to resolve all relevant scales of motion, but remains finite so that the boundary is not a sharp interface. In LES, the scale on which the boundary is resolved is consistent with the resolved scales of motion.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Conference paper |
| Pages: |
8 |
| Report Date: |
AUG 2001 |
| Report Number: |
P656310 |
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Keywords relating to this report:
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