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A parallel CFD simulation system using three-dimensional generalized grids in the solution of moving boundary unsteady flows

Posted on:2002-12-09Degree:M.SType:Thesis
University:Mississippi State UniversityCandidate:Plotner, Douglas LeeFull Text:PDF
GTID:2460390011995532Subject:Engineering
Abstract/Summary:
With the ongoing advances in computer hardware technology, computational simulation is becoming a more cost-effective alternative design tool to engineering analysis. Within the field, methods using grids with an arbitrary number and shape of faces have shown promise for solving geometrically complex problems.; This study examines the viability of extending core generalized grid solution capabilities via parallel grid movement for the solution of unsteady moving body problems. The parallel algorithm approach uses the Message Passing Interface (MPI) standard to communicate grid point and edge information across partition interfaces. The linear spring analogy is used to move the grid points.; An oscillating NACA 0012 airfoil and a typical store separation are used to validate the algorithmic results. In addition to the validation, comparisons are made to assess the performance enhancement of the parallelization. Results of this testing are presented, and conclusions are drawn about the effectiveness of the developed methods.
Keywords/Search Tags:Parallel, Grid, Solution
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