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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41597

Title: Unsteady relativistic shock wave diffraction by cylinders and spheres
Authors: I-Nan Tsai;Juan-Chen Huang;Shang-Shi Tsai;J. Y. Yang
Contributors: 國立臺灣海洋大學:商船學系
Date: 2012-02
Issue Date: 2017-03-08T07:40:56Z
Abstract: Abstract: The unsteady relativistic shock-wave diffraction patterns generated by a relativistic blast wave impinging on a circular cylinder and a sphere are numerically simulated using some high-resolution relativistic kinetic beam schemes in a general coordinate system for solving the relativistic Euler equations of gas dynamics. The diffraction patterns are followed through about 6 radii of travel of the incident shock past the body. The complete diffraction patterns, including regular reflection, transition from regular to Mach reflection, slip lines, and the complex shock-on-shock interaction at the wake region resulting from the Mach shocks collision behind the body are reported in detail. Computational results of several incident shock Mach numbers covering the near ultrarelativistic limit are studied. Various contours of flow properties including the Lorentz factor and velocity streamline plots are also presented to add a better understanding of the complex diffraction phenomena. The three-dimensional relieving effects of the sphere cases are evident and can be quantitatively evaluated as compared with the corresponding cylinder cases.
Relation: 85
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41597
Appears in Collections:[商船學系] 期刊論文

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