| 突扩燃烧室流场RANS与LES模拟 |
| |
| 引用本文： | 李昊,于胜春,李高春,赵汝岩,郑日恒.突扩燃烧室流场RANS与LES模拟[J].海军航空工程学院学报,2009,24(2):129-132. |
| |
| 作者姓名： | 李昊 于胜春 李高春 赵汝岩 郑日恒 |
| |
| 作者单位： | 1. 海军航空工程学院,飞行器工程系,山东,烟台,264001
2. 航天科工集团公司三十一研究所,北京,100074 |
| |
| 摘 要： | 以中心突扩燃烧室为模拟对象,分别从旋涡运动、空间速度分布和时间速度脉动等方面对RANS模拟结果、LES模拟结果和试验结果进行了比较分析。表明RANS方法没有模拟出燃烧室中的旋涡运动,与试验结果相差甚远;而LES方法则比较好地模拟出了燃烧室中旋涡运动和速度脉动。得出LES方法是对突扩燃烧室内流场数值研究的有效方法。
|
| 关 键 词： | 突扩燃烧室 雷诺平均模拟 大涡模拟 |
Comparison of RANS and LES in Dump Combustor Flow |
| |
| LI Hao,YU Sheng-chun,LI Gaochun,ZHAO Ru-yan and ZHENG Ri-heng.Comparison of RANS and LES in Dump Combustor Flow[J].Journal of Naval Aeronautical Engineering Institute,2009,24(2):129-132. |
| |
| Authors: | LI Hao YU Sheng-chun LI Gaochun ZHAO Ru-yan and ZHENG Ri-heng |
| |
| Institution: | 1.Department of Airborne Vehicle Engineering;NAAU;Yantai Shandong 264001;China;2.The 31st Research Institute of CASIC;Beijing 100074;China |
| |
| Abstract: | In this paper, RANS model and LES model were applied to study center-dump combustor. Both data were compared with experiment results from vortex motion, spatial velocity distribution and temporal velocity distribution. As a result, with the RANS model, no vortex motion appearing, it disagreed with experiment results. While with the LES model, vortex motion and velocity oscillation appeared as the experiment. So it was appropriate to apply LES model to study flow of dump combustor. |
| |
| Keywords: | dump combustor RANS LES |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《海军航空工程学院学报》浏览原始摘要信息 |
| 点击此处可从《海军航空工程学院学报》下载免费的PDF全文 |
|
