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Accurate and Efficientre-Evaluation of Cell-Interface Convective Fluxes
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- Authors
- Issue Date
- 2006-06
- Citation
- Journal of KSIAM Vol.10 No.1, pp. 35-54
- Keywords
- 복합학 ; Multi-dimensional flow computations ; Advection property ; AUSM-type method ; M-AUSMPW+ ; TVD limiting condition ; MUSCL
- Abstract
- In order to reduce the excessive numerical dissipation which is induced when a grid
system is not aligned with a discontinuity, a new spatial treatment of ce11·interface fluxes is
introduced. The M-AUSMPW+ in this paper has the fonnula that has an additional procedure of redefining
transferred properties at a cell-interface, based on AUSMPW+. The newly defined
transferred property could eliminate numerical dissipation effectively in non~flow aligned grid
system of multi-dimensional flows. Through several test cases M-AUSMPW+ proves to be efficient
and about twice more accurate than conventional upwind schemes. The three-dimensional
implementation of M-AUSMPW+ is expected to provide accuracy and efficiency improvement
furthermore.
- Language
- English
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