INTERACTION OF SHOCK WAVE WITH MULTI-FLUIDS INTERFACE USING QUADRILATERAL-BASED ADAPTIVE MESH

H. W. Zheng (), X. J. Li, G. W. Yang and C. Shu ()
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H. W. Zheng: LHD, Institute of Mechanics, Chinese Academy of Sciences, 15 Beisihuanxi Road, Beijing 100190, P. R. China
X. J. Li: LHD, Institute of Mechanics, Chinese Academy of Sciences, 15 Beisihuanxi Road, Beijing 100190, P. R. China
G. W. Yang: LHD, Institute of Mechanics, Chinese Academy of Sciences, 15 Beisihuanxi Road, Beijing 100190, P. R. China
C. Shu: Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent 119260, Singapore

International Journal of Modern Physics C (IJMPC), 2012, vol. 23, issue 05, 1-14

Abstract: In this paper, the interaction of shock waves with multi-fluids interfaces is investigated by numerical simulations using unstructured quadrilateral adaptive meshes. In order to obtain a detailed structure of the interface, a solution adaptive method for compressible multi-fluid flows developed by Zhenget al.is employed. Firstly, the method is verified by a planar shock and interface interaction problem, which is compared with the front tracking method for the Richtmyer–Meshkov instability problem. Following the verification, the interaction between a circular shock and a sinusoidally perturbed circular interface in cylinder vessel is firstly investigated in our paper. The results show that the solution adaptive method can be employed to study the compressible multi-fluid cases with relatively complex geometry as well as capturing the fine details of interfacial structures of the interaction.

Keywords: Shock; multi-fluids; interface; unstructured; adaptive mesh refinement; quadrilateral; 11.25.Hf; 123.1K (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1142/S0129183112500337

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