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Title:
Acoustic Calculation for Supersonic Turbulent Boundary Layer Flow
Author: Li XL(李新亮); Fu DX(傅德薰); Ma YW(马延文); Gao H(高慧)
Source: Chinese Physics Letters
Issued Date: 2009
Volume: 26, Issue:9, Pages:094701-1-4
Abstract: An approach which combines direct numerical simulation (DNS) with the Lighthill acoustic analogy theory is used to study the potential noise sources during the transition process of a Mach 2.25 flat plate boundary layer. The quadrupole sound sources due to the flow fluctuations and the dipole sound sources due to the fluctuating surface stress are obtained. Numerical results suggest that formation of the high shear layers leads to a dramatic amplification of amplitude of the fluctuating quadrupole sound sources. Compared with the quadrupole sound source, the energy of dipole sound source is concentrated in the relatively low frequency range.
Keyword: DIRECT NUMERICAL-SIMULATION ; SOUND
Language: 英语
Indexed Type: SCI
Corresponding Author: 李新亮
Correspondent Email: lixl@imech.ac.cn
DOC Type: Article
WOS Subject: Physics, Multidisciplinary
WOS Subject Extended: Physics
WOS Keyword Plus: DIRECT NUMERICAL-SIMULATION ; SOUND
WOS ID: WOS:000269559000048
ISSN: 0256-307X
Subject: 流体力学::分层流
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/33060
Appears in Collections:高温气体动力学国家重点实验室_期刊论文

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Recommended Citation:
Li XL,Fu DX,Ma YW,et al. Acoustic Calculation for Supersonic Turbulent Boundary Layer Flow[J]. Chinese Physics Letters,2009-01-01,26(9):094701-1-4.
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