Extension of CE/SE method to non-equilibrium dissociating flows
Extension of CE/SE method to non-equilibrium dissociating flows
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DOI：
10.1016/j.jcp.2017.12.005
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发表时间：
2018-03
期刊：
影响因子：
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通讯作者：
C. Wen;H. S. Massimi;Hua Shen
中科院分区：
文献类型：
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作者：
C. Wen;H. S. Massimi;Hua Shen
本文采用一种基于三角形和四边形单元混合网格的稳健守恒单元和求解单元(CE/SE)程序对高超声速圆头几何形状的非平衡绕流进行了数值模拟。计算中考虑了解离和复合化学反应以及振动能弛豫。刚性源项采用隐式梯形积分方法求解。通过与实验室和数值算例的比较，验证了该程序在高超声速非平衡流动模拟中的准确性和可靠性。
In this study, the hypersonic non-equilibrium flows over rounded nose geometries are numerically investigated by a robust conservation element and solution element (CE/SE) code, which is based on hybrid meshes consisting of triangular and quadrilateral elements. The dissociating and recombination chemical reactions as well as the vibrational energy relaxation are taken into account. The stiff source terms are solved by an implicit trapezoidal method of integration. Comparison with laboratory and numerical cases are provided to demonstrate the accuracy and reliability of the present CE/SE code in simulating hypersonic non-equilibrium flows.