| Simulation of Turbulent Wind Noise Reduction By Porous Windscreens Using High-Order Schemes | |
| Xu Y; Zheng ZC; Wilson DK; Xu, Y (reprint author), Chinese Acad Sci, Key Lab Micrograv, Inst Mech, Beijing 100190, Peoples R China. | |
| 发表期刊 | JOURNAL OF COMPUTATIONAL ACOUSTICS
 |
| 2010 | |
| 卷号 | 18期号:4页码:321-334 |
| ISSN | 0218-396X |
| 摘要 | The purpose of the study is to investigate the wind noise reduction provided by microphone windscreens at different frequencies of the impinging turbulence. The windscreen is assumed to be a cylindrically shaped porous medium. This paper uses a high-order scheme to improve the accuracy at the interface between air and porous medium. The computational scheme is based on a modified immersed-boundary method with distributed forcing terms. The simulation results show that, for low-frequency turbulence, the windscreens with low flow resistivity are more effective in noise reduction, while for high-frequency turbulence, the windscreens with high flow resistivity are more effective. |
| 关键词 | Wind Noise Porous Medium High-order Scheme Windscreen |
| DOI | 10.1142/S0218396X10004231 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000285783600002 |
| 关键词[WOS] | IMMERSED-BOUNDARY METHOD ; FINITE-DIFFERENCE ; FLOW ; IMPLEMENTATION ; FLUCTUATIONS ; EQUATIONS ; CYLINDER ; SURFACES |
| WOS研究方向 | Acoustics ; Mathematics |
| WOS类目 | Acoustics ; Mathematics, Interdisciplinary Applications |
| 项目资助者 | US Army Engineer Research and Development Center [W913E7-07-C-0004] |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/58599 |
| 专题 | 微重力重点实验室 |
| 通讯作者 | Xu, Y (reprint author), Chinese Acad Sci, Key Lab Micrograv, Inst Mech, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Xu Y,Zheng ZC,Wilson DK,et al. Simulation of Turbulent Wind Noise Reduction By Porous Windscreens Using High-Order Schemes[J]. JOURNAL OF COMPUTATIONAL ACOUSTICS,2010,18,4,:321-334. |
| APA | Xu Y,Zheng ZC,Wilson DK,&Xu, Y .(2010).Simulation of Turbulent Wind Noise Reduction By Porous Windscreens Using High-Order Schemes.JOURNAL OF COMPUTATIONAL ACOUSTICS,18(4),321-334. |
| MLA | Xu Y,et al."Simulation of Turbulent Wind Noise Reduction By Porous Windscreens Using High-Order Schemes".JOURNAL OF COMPUTATIONAL ACOUSTICS 18.4(2010):321-334. |
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