| 高超声速三维化学非平衡流动简化NS方程数值解 |
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| 引用本文： | 欧阳水吾,苏玉宏,谢中强.高超声速三维化学非平衡流动简化NS方程数值解[J].力学学报,1994,26(4):385-396. |
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| 作者姓名： | 欧阳水吾 苏玉宏 谢中强 |
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| 作者单位： | 北京空气动力研究所 |
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| 摘 要： | 本文研究用时间稳定法求解高超声速三维化学非平衡流动简化ＮＳ方程，把整个非平衡流体动力学问题分裂为流体力学问题和化学问题。流体力学与化学问题之间的耦合通过迭代方式加以处理。考虑高温空气分解与电离，七个化学组元，并认为化学反应是以有限速率进行的．差分格式采用无自由参数的混合反扩散格式，激波及壁面处理应用特征线理论．对来流攻角为１０°，马赫数为２６，飞行高度为８５ｋｍ的钝锥体，给出了流场参数和物面加热率的数值计算结果．
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| 关 键 词： | 分解，电离，时间稳定法，化学非平衡，混合反扩散格式，简化NS方程 |
NUMERICAL SOLUTION OF SIMPLIFIED NAVIER-STOKES EQUATIONS FOR HYPERSONIC THREE-DIMENSIONAL VISCOUS FLOWS WITH CHEMICAL NONEQUILIBRIUM |
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| Ouyang Shuiwu,Su Yuhong,Xie Zhongqiang.NUMERICAL SOLUTION OF SIMPLIFIED NAVIER-STOKES EQUATIONS FOR HYPERSONIC THREE-DIMENSIONAL VISCOUS FLOWS WITH CHEMICAL NONEQUILIBRIUM[J].chinese journal of theoretical and applied mechanics,1994,26(4):385-396. |
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| Authors: | Ouyang Shuiwu Su Yuhong Xie Zhongqiang |
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| Abstract: | In this paper the time-dependent method has been applied to the compu-tation of simplified Navier-Stokes equations for hypersonic three-dimensional viscous flowswith chemical nonequilibrium. The overall problem is decoupled into(a)a fluid mechanicproblem and(b)a chemistry problem. The coupling between the fluid mechanics and thechemistry is treated in an iterative manner. For very high Mach number the air in the shocklayer that envelops the body is at high temperature. The air may become appreciably dis- s... |
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| Keywords: | dissociation ionization time-dependent method chemical nonequilib-rium mixing-anti-diffusing differences scheme Navier-Stokes equations |
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