| 气体运动论统一算法在跨流域转动非平衡效应模拟中的应用 |
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| 引用本文： | 蒋新宇,李志辉,吴俊林.气体运动论统一算法在跨流域转动非平衡效应模拟中的应用[J].计算物理,2014,31(4):403-411. |
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| 作者姓名： | 蒋新宇 李志辉 吴俊林 |
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| 作者单位： | 1. 中国空气动力研究与发展中心超高速研究所, 四川 绵阳 621000;2. 国家计算流体力学实验室, 北京 100191 |
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| 基金项目： | 国家自然科学基金(91016027)资助项目 |
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| 摘 要： | 从考虑转动松弛变化特性的Rykov模型出发,基于Boltzmann模型方程求解跨流域气体运动论统一算法原理与计算规则,采用转动惯量描述气体分子自旋运动,研究考虑转动非平衡影响的Boltzmann模型方程数值求解方法.通过对氮气激波结构、二维钝头体和三维尖双锥跨流域绕流的模拟分析,验证该算法的跨流域一致适用性.
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| 关 键 词： | 转动非平衡 统一算法 激波结构 钝头体 尖双锥 |
| 收稿时间： | 2013-03-17 |
| 修稿时间： | 2013-07-17 |
Application of Gas-Kinetic Unified Algorithm Covering Various Flow Regimes for Rotational Non-equilibrium Effect |
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| JIANG Xinyu,LI Zhihui,WU Junlin.Application of Gas-Kinetic Unified Algorithm Covering Various Flow Regimes for Rotational Non-equilibrium Effect[J].Chinese Journal of Computational Physics,2014,31(4):403-411. |
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| Authors: | JIANG Xinyu LI Zhihui WU Junlin |
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| Institution: | 1. China Aerodynamics Research and Development Center, HAI, Mianyang 621000, China;2. National Laboratory for Computational Fluid Dynamics, Beijing 100191, China |
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| Abstract: | With gas-kinetic unified algorithm (GKUA) based on Boltzmann equation for various flows regimes, rotational non-equilibrium effect is investigated in Rykov model, in which spin movement of gas molecules is described with moment of inertia. Numerical method of Boltzmann model equation involving rotational non-equilibrium effect is developed. Nitrogen shock wave structure, flows around a 2D blunt-head body and flows around a 3D tine bicone are simulated to validate the method in various flows regimes. |
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| Keywords: | rotational non-equilibrium GKUA shock wave structure blunt-head body tine bicone |
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