Abstract
Large eddy simulation was applied to simulate the compressible flow past multiple wall-mounted rectangular cylinders in a channel flow. The dynamic sub-grid stress model was employed to approximate the sub-grid scale effects. For flow past single wall-mounted cylinder, our calculated results agree well with the results of both previous experimental and numerical results which showed the formation and diffusion of vortexes around the cylinder. Flow past two wall-mounted cylinders has also been simulated numerically and our numerical results disclosed the formation of the vortex street behind the second cylinder and the developing process of flow field, which is important for practical engineering application.
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