| 耦合辐射的三维热化学非平衡流数值模拟 |
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| 引用本文： | 王逸斌,伍贻兆,刘学强.耦合辐射的三维热化学非平衡流数值模拟[J].计算物理,2008,25(4):421-426. |
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| 作者姓名： | 王逸斌 伍贻兆 刘学强 |
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| 作者单位： | 南京航空航天大学 航空宇航学院, 江苏 南京 210016 |
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| 摘 要： | 发展耦合辐射的三维热化学非平衡流场计算方法,可用于非结构网格.采用Jameson有限体积法求解耦合辐射源项的三维N-S方程.辐射源项通过求解辐射输运方程(Radiative Transport Equation RTE)获得.在空间方向上离散后,采用有限体积法求解辐射输运方程.化学模型包含11个组元,20个化学反应.采用该数值方法计算MUSES-C模型在速度为11.6 km·s-1时的绕流流场及前驻点处的辐射热流密度.并通过对比,分析热辐射对流场的影响.
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| 关 键 词： | 计算流体力学 热辐射 热化学非平衡 |
| 收稿时间： | 2007-04-10 |
| 修稿时间： | 2007-07-23 |
Simulation of 3D Hypersonic Ionized and Radiating Flows in Thermal and Chemical Nonequilibrium |
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| WANG Yibin,WU Yizhao,LIU Xueqiang.Simulation of 3D Hypersonic Ionized and Radiating Flows in Thermal and Chemical Nonequilibrium[J].Chinese Journal of Computational Physics,2008,25(4):421-426. |
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| Authors: | WANG Yibin WU Yizhao LIU Xueqiang |
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| Institution: | College of Aerospace Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
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| Abstract: | A numerical method applicable to unstructured mesh is proposed to compute 3D hypersonic ionized and radiating flowfields in thermo-chemical nonequilibrium.The flowfield is described with multi-specy NS equations.The chemical model includes 11 species(O_2,N_2,O,N,NO,NO~ ,N~ ,O~ ,N~ _2,O~ _2,e~-) and 20 reactions.For thermal nonequilibrium effect,a two temperature model is considered.Radiation transfer equation(RTE) is solved with finite volume method.Numerical result on MUSES-C is shown and compared with referenced data.Influence of radiation on flowfield is discussed. |
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| Keywords: | computational fluid dynamics radiation thermo-chemical nonequilibrium flow |
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