TY - GEN
T1 - Parameter-free shock detector and high order hybrid algorithm for shock/complex flowfield interaction
AU - Shen, Yiqing
AU - Cui, Kai
AU - Yang, Guowei
AU - Zha, Gecheng
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - In order to accurately simulate the interaction of shock wave/complex flows, hybrid schemes combining a compact scheme and weighted essentially non-oscillatory(WENO) scheme are beneficial, in particular due to the high order low dissipation schemes used in smooth regions. For a hybrid scheme, there are two key issues, one is how to detect the discontinuity, the other is how to choose the high order low dissipation scheme to ensure the accuracy, robustness and efficiency. In this paper, a shock detecting method without any artificial parameter is proposed using the definition of the derivative. Based on this shock detecting method, a high order accuracy low dissipation shock-capturing algorithm is constructed. Numerical examples show that the shock detecting method and the hybrid algorithm are accurate, efficient and robust.
AB - In order to accurately simulate the interaction of shock wave/complex flows, hybrid schemes combining a compact scheme and weighted essentially non-oscillatory(WENO) scheme are beneficial, in particular due to the high order low dissipation schemes used in smooth regions. For a hybrid scheme, there are two key issues, one is how to detect the discontinuity, the other is how to choose the high order low dissipation scheme to ensure the accuracy, robustness and efficiency. In this paper, a shock detecting method without any artificial parameter is proposed using the definition of the derivative. Based on this shock detecting method, a high order accuracy low dissipation shock-capturing algorithm is constructed. Numerical examples show that the shock detecting method and the hybrid algorithm are accurate, efficient and robust.
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M3 - Conference contribution
AN - SCOPUS:84881417049
SN - 9781624101816
T3 - 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
BT - 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
T2 - 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
Y2 - 7 January 2013 through 10 January 2013
ER -