Combined Adaptive Meshing Technique and Characteristic Based Split Algorithm for Viscous Incompressible Flow Analysis

Suthee Traivivatana; Parinya Boonmarlet; Patcharee Theeraek; Sutthisak Phongthanapanich; Pramote Dechaumphai

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Article Navigation > Applied Mathematics and Mechanics > 2007 > 28(9): 1037-1046

Suthee Traivivatana, Parinya Boonmarlet, Patcharee Theeraek, Sutthisak Phongthanapanich, Pramote Dechaumphai. Combined Adaptive Meshing Technique and Characteristic Based Split Algorithm for Viscous Incompressible Flow Analysis[J]. Applied Mathematics and Mechanics, 2007, 28(9): 1037-1046.

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Combined Adaptive Meshing Technique and Characteristic Based Split Algorithm for Viscous Incompressible Flow Analysis

1.
Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Patumwan, Bangkok 10330, Thailand;

Received Date: 2006-05-08
Rev Recd Date: 2007-05-08
Publish Date: 2007-09-15

Abstract

Abstract

A combined chara cteristic-based splitalgorithm and anada ptive meshing technique foranalyzing two-dimensional viscous incompressible flow is presented. The method uses the three-node triangular element with equal-order interpolation functions forall variables of the velocity components and pressure. The main a dvantage of the combined method is toimprove solution a ccuracy by coupling an error estimation procedure to anada ptivemeshing technique that generates small elements in regions with largechange in solution gradients, and at the same time, larger elements in other regions. The performance of the combined procedure is evaluated by analyzing the three testcases of the flow past a cylinder, for their transient and steady-state flow behaviors.
- adaptive mesh,
- caharcteristic-based split,
- finite element method,
- incompr essible flow

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References(16)

References

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