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http://dx.doi.org/10.5139/JKSAS.2004.32.9.012

Development of Low Dissipative AUSM-type Scheme  

Kim, Kyu-Hong (IRS, Stuttgart)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.9, 2004 , pp. 12-26 More about this Journal
Abstract
A new treatment of cell-interface flux in AUSM-type methods is introduced to reduce the numerical dissipation. Through analysis of TVD limiters, a criterion for the more accurate prediction of cell-interface state is found out and M-AUSMPW+ is developed by determining the transferred property newly and appropriately within the criterion. The superiority of M-AUSMPW+ is clearly revealed in multi-dimensional flow problems. It can eliminate numerical dissipation effectively in a non-flow aligned grid system. As a result, M-AUSMPW+ is shown to be much more accurate and effective than other previous schemes in multi-dimensional problems. Through a stationary contact discontinuity, a vortex flow, a shock wave/boundary layer interactions and viscous shock tube problems, it is verified that accuracy of M-AUSMPW+ is improved.
Keywords
multi-dimensional flow; accuracy improvement; TVD condition; M-AUSMPW+(M-AUSMPW+);
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