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Accurate and Efficientre-Evaluation of Cell-Interface Convective Fluxes

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Authors
Koo, Heeseok; Yoon, Sung-Hwan; Kim, Chongam; Kim, Kyu-Hong
Issue Date
2006-06
Publisher
Korean Society for Industrial and Applied Mathematics
Citation
Journal of KSIAM Vol.10 No.1, pp. 35-54
Keywords
복합학Multi-dimensional flow computationsAdvection propertyAUSM-type methodM-AUSMPW+TVD limiting conditionMUSCL
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
URI
http://hdl.handle.net/10371/82297
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Journal Papers (저널논문_기계항공공학부)
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