| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 825824 | International Journal of Engineering Science | 2006 | 14 Pages |
Abstract
A near-wall eddy-viscosity formulation for LES is presented. A RANS-like eddy-viscosity corrected with the resolved turbulent stress is imposed in the near-wall region. The RANS eddy-viscosity is obtained from a resolved LES of channel flow at Reτ = 395 and stored in a look-up table. When used with a wall stress model, this technique enables LES to be performed on coarse grids. Results are presented for channel flow at several Reynolds numbers up to Reτ = 10,000. Various issues concerning the numerical behavior of the method are discussed.
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Authors
Gorazd Medic, Jeremy A. Templeton, Georgi Kalitzin,