Numerical Simulation of Shock Diffraction on Cartesian Grid

Abstract:

Shock diffraction over geometric obstacles is performed on two-dimensional cartesian grid using the TVD WAF method in conjunction with the HLLC approximate Riemann solver and dimensional splitting. Present cartesian grid results for popular and challenging two-dimensional shock diffraction problems are presented and compared to experimental photographs. Benchmark and example test cases were chosen to cover a wide variety of Mach numbers for weak and strong shock waves, and for square and circular geometries. The results show that the comparisons between experimental and simulated images are consistent.

• Periodical: Advanced Materials Research (Volumes 378-379)
• Pages: 11-14
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.378-379.11
• Online since: October 2011
• Authors: Hong Chen, Wei Bing Zhu, Run Peng Sun, Bin Zhang
• Keywords: Cartesian Grid, Ghost Cell Method, Level Set, Shock Diffraction

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