An approximate deconvolution model for large-eddy simulation of compressible flows with finite-volumes schemes
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Date
2002Type
- Conference Paper
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yes
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Abstract
The approximate deconvolution model (ADM) for largeeddy simulation (LES) is formulated for a 2nd-order finite-volume scheme. With ADM, an approximation of the unfiltered solution is obtained by repeated filtering, and given a good approximation of the unfiltered solution, the nonlinear terms of the Navier-Stokes equations are computed directly. The effect of scales not represented on the numerical grid is modeled by a relaxation regularization involving a secondary filter operation3. A turbulent channel flow at a Mach number of M=1.5 and a Reynolds number based on bulk quantities of Re=3000 is selected for validation of the ADM implementation in a finite-volume code. A direct numerical simulation (DNS) of this configuration has been computed by Coleman et al.18. Overall, our LES results show good agreement with our filtered DNS data. For this rather simple configuration and the low-order spatial discretization, differences between ADM and a no-model computation are found to be small. Show more
Publication status
publishedExternal links
Book title
40th AIAA Aerospace Sciences Meeting and ExhibitPages / Article No.
Publisher
American Institute of Aeronautics and AstronauticsEvent
Organisational unit
03419 - Kleiser, Leonhard
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