WSEAS Transactions on Fluid Mechanics
Print ISSN: 1790-5087, E-ISSN: 2224-347X
Volume 10, 2015
Large Eddy Simulation in Three-dimensional Cavity Using Dynamic Modeling
Authors: , ,
Abstract: Our study developed a fourth-order numerical code in space and a third-order in time with dynamical turbulence model. This code was applied to study turbulence transition in shear driven cavity flow in bi and three- dimensional configurations. The simulations had been carried out for bi and three-dimensional configurations. The two dimensional simulations were performed to be compared with results presented in the literature in order to validate the developed code, as well as to define the best parameters for the simulations in three-dimensional configuration. The Reynolds numbers were taken as 3200, 10000, 25000, 50000 and 100000. The simulations of cubic shear driven cavity flow with Reynolds numbers 3200 and 10000 were compared with results presented in the literature. Two-dimensional simulation was performed without turbulence model, and three-dimensional simulations were performed using the Smagorinsky and Germano models for sub-grid scale. The topological physical nature was analyzed and some important new physic characteristics were pointed out.
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Pages: 125-135
WSEAS Transactions on Fluid Mechanics, ISSN / E-ISSN: 1790-5087 / 2224-347X, Volume 10, 2015, Art. #