IMECH-IR  > 国家微重力实验室
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.
Source PublicationJOURNAL OF COMPUTATIONAL ACOUSTICS
2010
Volume18Issue:4Pages:321-334
ISSN0218-396X
AbstractThe 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.
KeywordWind Noise Porous Medium High-order Scheme Windscreen
DOI10.1142/S0218396X10004231
Indexed BySCI
Language英语
WOS IDWOS:000285783600002
WOS KeywordIMMERSED-BOUNDARY METHOD ; FINITE-DIFFERENCE ; FLOW ; IMPLEMENTATION ; FLUCTUATIONS ; EQUATIONS ; CYLINDER ; SURFACES
WOS Research AreaAcoustics ; Mathematics
WOS SubjectAcoustics ; Mathematics, Interdisciplinary Applications
Funding OrganizationUS Army Engineer Research and Development Center [W913E7-07-C-0004]
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58599
Collection国家微重力实验室
Corresponding AuthorXu, Y (reprint author), Chinese Acad Sci, Key Lab Micrograv, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
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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