A summary of our recent research efforts to understand fluid flows, by using computational methods, is presented. Stabilized finite element methods are employed to compute fluid flows at various Reynolds and Mach numbers including those that involve moving boundaries. Some of the flow problems arise from practical applications while others add to understanding of certain fundamental issues in fluid mechanics. Most of the applications require large scale computing. To that extent, whereever possible, our inhouse codes have been parallelized using MPI libraries. On a 64processor Linux cluster the implementation has resulted in superlinear speedup for large grids.
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