A hybrid scheme for the numerical simulation of shock/discontinuity problems

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Issue Date
2011
Authors
Mahmoudnejad, Niloufar
Hoffmann, Klaus A.
Advisor
Citation

Mahmoudnejad, N., and K.A. Hoffmann. 2011. "A hybrid scheme for the numerical simulation of shock/discontinuity problems". INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS. 25 (9): 469-486.

Abstract

To address accuracy issues for direct numerical simulation, a hybrid scheme based on the weighted compact scheme (WCS) and weighted essentially non-oscillatory (WENO) scheme is developed. The new hybrid method incorporates the advantages of both schemes. Time integration is performed using the fourth-order total variation diminishing Runge–Kutta method with a characteristic filter. The accuracy of the scheme is assessed using several benchmark problems. Results show that the proposed scheme produces a more accurate solution for problems involving shocks and discontinuities in comparison with the traditional shock-capturing methods.

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