Three-dimensional numerical study of the acoustic properities of a highly underexpanded jet
文献类型：会议论文
| 作者 | Wu K(吴坤) ; Li XP(李晓鹏); Yao W(姚卫); Fan XJ(范学军)
|
| 出版日期 | 2015 |
| 会议名称 | 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015 |
| 会议日期 | July 6, 2015 - July 9, 2015 |
| 会议地点 | Glasgow, United kingdom |
| 关键词 | Frequency spectrum analysis High temporal resolution Instantaneous flow Noise generation mechanisms Theoretical modeling Three dimensional numerical studies Transport mechanism Under expanded jets |
| 中文摘要 | The goal of this paper is to advance the simulation of the acoustic field of highly underexpanded jets and to gain a deeper physical understanding of the noise generation mechanism. Large eddy simulation of an underexpanded jet with NPR of 5.60 is implemented with one-equation model for sub-grid scale (SGS) kinetic energy. The predicted time-averaged results agree well with the literature data and theoretical model, especially for the height and diameter of Mach disk. The generation and transport mechanism of sound source are discussed based on high temporal-resolution instantaneous flow fields. Furthermore, the dual-source pattern of the jet noise field is revealed by frequency spectrum analysis. © 2015, AIAA American Institute of Aeronautics and Astronautics. All rights reserved. |
| 收录类别 | EI |
| 会议网址 | http://dx.doi.org/10.2514/6.2015-3572 |
| 会议录 | 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015
 |
| 语种 | 英语 |
| ISBN号 | 9781624103209 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60164]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wu K,Li XP,Yao W,et al. Three-dimensional numerical study of the acoustic properities of a highly underexpanded jet[C]. 见:20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015. Glasgow, United kingdom. July 6, 2015 - July 9, 2015.http://dx.doi.org/10.2514/6.2015-3572 . |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。