Large eddy simulation of flow past a rigid prism of a square cross section with one side facing the oncoming flow at is performed. An incompressible code is used employing an implicit fractional step method finite volume with second-order accuracy in space and time. Three different subgrid scale models: the Smagorinsky, the standard dynamic, and a dynamic one-equation model, are applied. The influence of finer grid, shorter time step, and larger computational spanwise dimension is investigated. Some global quantities, such as the Strouhal number and the mean and rms values of lift and drag, are computed. A scheme for correcting the global results for blockage effects is presented. By comparison with experiments, the results produced by the dynamic one-equation one give better agreement with experiments than the other two subgrid models. [S0098-2202(00)01001-4]
Large Eddy Simulation of Flow Past a Square Cylinder: Comparison of Different Subgrid Scale Models
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division March 15, 1999; revised manuscript received November 15, 1999. Associate Technical Editor: J. Eaton.
- Views Icon Views
- Share Icon Share
- Search Site
Sohankar, A., Davidson, L., and Norberg, C. (November 15, 1999). "Large Eddy Simulation of Flow Past a Square Cylinder: Comparison of Different Subgrid Scale Models ." ASME. J. Fluids Eng. March 2000; 122(1): 39–47. https://doi.org/10.1115/1.483224
Download citation file: