| 高超声速热化学非平衡空间格式的扩展与改进 |
| |
| 引用本文： | 周禹,阎超.高超声速热化学非平衡空间格式的扩展与改进[J].北京航空航天大学学报,2010,36(2):193-197. |
| |
| 作者姓名： | 周禹 阎超 |
| |
| 作者单位： | 北京航空航天大学,航空科学与工程学院,北京100191;北京航空航天大学,航空科学与工程学院,北京100191 |
| |
| 基金项目： | 国家自然科学基金资助项目(90716010) |
| |
| 摘 要： | 扩展、改进和分析了ROE,MAPS,LDFSS,HLLC,HCUSP和ECUSP6种高分辨率空间格式于热化学非平衡流的计算中.采用5组分17反应的Dunn-Kang化学反应模型和Park的双温模型计算了三维球头算例,得到如下结论:ROE和MAPS格式精度高于LDFSS,HLLC和CUSP类格式;基于ROE平均的界面音速可提高格式的鲁棒性及斜激波捕捉能力,同时对流场参量的计算无影响;ROE平均音速的引用改进了MAPS和ECUSP格式.为热化学非平衡流场计算格式的选择提供了参考.
|
| 关 键 词： | 高温气体效应 空间格式 高超声速流动 计算流体力学 |
| 收稿时间： | 2008-12-29 |
Extension and improvement for schemes in hypersonic thermal and chemical non-equilibrium flows |
| |
| Zhou Yu,Yan Chao.Extension and improvement for schemes in hypersonic thermal and chemical non-equilibrium flows[J].Journal of Beijing University of Aeronautics and Astronautics,2010,36(2):193-197. |
| |
| Authors: | Zhou Yu Yan Chao |
| |
| Institution: | School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
| |
| Abstract: | Six high accuracy schemes(ROE,MAPS,LDFSS,HLLC,HCUSP and ECUSP) were successfully extended from ideal gas model to thermal and chemical non-equilibrium gas model.All the schemes were analyzed in detail.Some of them were improved by ROE averaging numerical speed.Five species seventeen reactions Dunn-Kang chemical reaction model and Park's two-temperature kinetic model were used to compute three-dimensional sphere test.The results show that in thermal and chemical non-equilibrium flow,the ROE and MAPS schemes ... |
| |
| Keywords: | high temperature effects scheme hypersonic flow computational fluid dynamics |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京航空航天大学学报》浏览原始摘要信息 |
| 点击此处可从《北京航空航天大学学报》下载免费的PDF全文 |
|
