Bibliographic Details
| Title: |
Validation of LES-C turbulence models. |
| Authors: |
Batugedara, Yasasya1 (AUTHOR) bbatuged@mtu.edu, Labovsky, Alexander E.1 (AUTHOR) aelabovs@mtu.edu, Schwiebert, Kyle J.1 (AUTHOR) kjschwie@mtu.edu |
| Source: |
Computer Methods in Applied Mechanics & Engineering. Jan2024:Part A, Vol. 418, pN.PAG-N.PAG. 1p. |
| Subjects: |
Turbulence, Turbulent flow, Channel flow, Benchmark problems (Computer science), Large eddy simulation models |
| Abstract: |
A new family of turbulence models, Large Eddy Simulation with Correction (LES-C) has been proposed in Labovsky (2020), that reduces the modeling error by treating an LES model as a defect solution and then correcting it on the same spatial mesh. Herein, we investigate numerically several LES-C models, that stem from popular LES approaches: Approximate Deconvolution Model (A D M), Leray- α , NS- α , and NS- ω. The resulting LES-C models A D C , Leray- α -C, NS- α -C and NS- ω -C are tested on the two-dimensional problems (flow past a circular object, flow past a step) and on the three-dimensional benchmark problem of turbulent channel flow. In all the numerical tests all LES-C models are shown to outperform their LES counterparts on coarse spatial meshes. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
