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Title:
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PARALLEL MULTI-GRID LIKE SOLVER FOR THE PRESSURE POISSON EQUATION IN FLUID FLOW APPLICATIONS |
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Author(s):
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Jérôme Frisch, Ralf-Peter Mundani, Ernst Rank |
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ISBN:
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978-989-8533-20-3 |
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Editors:
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Hans Weghorn |
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Year:
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2013 |
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Edition:
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Single |
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Keywords:
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Parallel computing, multi-grid solver, hierarchical data structure |
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Type:
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Full Paper |
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First Page:
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139 |
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Last Page:
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146 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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Computational fluid dynamics (CFD) computations are time consuming intensive simulations best performed on large parallel computers in order to yield reasonable computing times. This paper focusses on a fast solution of the pressure Poisson equation which has to be solved at every time step of the Navier-Stokes equations using a fractional time step method, and poses a major time consuming factor in CFD simulations. The applied data structure is explained in detail as well as the solution mechanism based on a multi-grid like solver integrated directly in the geometric structure. Time and performance measurements, as well as convergence characteristics will be shown and discussed in detail. |
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