| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Comparative Study of the Large Eddy Simulations with the Lattice Boltzmann Method Using the Wall-Adapting Local Eddy-Viscosity and Vreman Subgrid Scale Models |
| LIU Ming1, CHEN Xiao-Peng1**, Kannan N. Premnath2 |
1School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an 710072
2Department of Mechanical Engineering, University of Colorado Denver, Denver 80217-3364, USA
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LIU Ming, CHEN Xiao-Peng, Kannan N. Premnath 2012 Chin. Phys. Lett. 29 104706 |
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Abstract The wall-adapting local eddy-viscosity (WALE) and Vreman subgrid scale models for large eddy simulations are compared within the framework of a generalised lattice Boltzmann method. Fully developed turbulent flows near a flat wall are simulated with the two models for the shear (or friction) Reynolds number of 183.6. Compared to the direct numerical simulation (DNS), damped eddy viscosity in the vicinity of the wall and a correct velocity profile in the transitional region are achieved by both the models without dynamic procedures. The turbulent statistics, including, e.g., root-mean-square velocity fluctuations, also agree well with the DNS results. The comparison also shows that the WALE model predicts excellent damped eddy viscosity near the wall.
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Received: 24 April 2012
Published: 01 October 2012
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