One-Step Direct Aeroacoustic Simulation Using Space-Time Conservation Element and Solution Element Method
文献类型：会议论文
| 作者 | Ho CY; Leung RCK; Zhou K ; Lam GCY; Jiang ZL(姜宗林)
|
| 出版日期 | 2011 |
| 会议名称 | 6th International Conference on Fluid Mechanics |
| 会议日期 | JUN 30-JUL 03, 2011 |
| 会议地点 | Guangzhou, PEOPLES R CHINA |
| 关键词 | aeroacoustics CAA CE/SE method acoustic wave supersonic jet |
| 卷号 | 1376 |
| 页码 | 218-220 |
| 中文摘要 | One-step direct aeroacoustic simulation (DAS) has received attention from aerospace and mechanical high-pressure fluid-moving system manufacturers for quite some time. They aim to simulate the unsteady flow and acoustic field in the duct simultaneously in order to investigate the aeroacoustic generation mechanisms. Because of the large length and energy scale disparities between the acoustic far field and the aerodynamic near field, highly accurate and high-resolution simulation scheme is required. This involves the use of high order compact finite difference and time advancement schemes in simulation. However, in this situation, large buffer zones are always needed to suppress the spurious numerical waves emanating from computational boundaries. This further increases the computational resources to yield accurate results. On the other hand, for such problem as supersonic jet noise, the numerical scheme should be able to resolve both strong shock waves and weak acoustic waves simultaneously. Usually numerical aeroacoustic scheme that is good for low Mach number flow is not able to give satisfactory simulation results for shock wave. Therefore, the aeroacoustic research community has been looking for a more efficient one-step DAS scheme that has the comparable accuracy to the finite-difference approach with smaller buffer regions, yet is able to give accurate solutions from subsonic to supersonic flows. The conservation element and solution element (CE/SE) scheme is one of the possible schemes satisfying the above requirements. This paper aims to report the development of a CE/SE scheme for one-step DAS and illustrate its robustness and effectiveness with two selected benchmark problems. |
| 收录类别 | CPCI |
| 合作状况 | 国际 |
| 会议录 | RECENT PROGRESSES IN FLUID DYNAMICS RESEARCH - PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON FLUID MECHANICS 丛书: AIP Conference Proceedings
 |
| 语种 | 英语 |
| ISSN号 | 0094-243X |
| ISBN号 | 978-0-7354-0936-1 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/47718]  |
| 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 | Ho CY,Leung RCK,Zhou K,et al. One-Step Direct Aeroacoustic Simulation Using Space-Time Conservation Element and Solution Element Method[C]. 见:6th International Conference on Fluid Mechanics. Guangzhou, PEOPLES R CHINA. JUN 30-JUL 03, 2011. |
入库方式： OAI收割
来源：力学研究所
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