Noise source identification with the lattice Boltzmann method

被引：16
|
作者：
Vergnault, Etienne [1 ]
Malaspinas, Orestis [1 ,2 ]
Sagaut, Pierre [1 ]
机构：
[1] Univ Paris 06, Inst Jean Le Rond dAlembert, UMR 7190, F-75005 Paris, France
[2] Univ Geneva, Dept Comp Sci, CH-1227 Carouge, Switzerland
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2013年 / 133卷 / 03期
基金：
瑞士国家科学基金会;
关键词：
SENSITIVITY-ANALYSIS; HYDRODYNAMICS; SCHEMES; FLOW;
D O I：
10.1121/1.4776181
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
In this paper the sound source identification problem is addressed with the use of the lattice Boltzmann method. To this aim, a time-reversed problem coupled to a complex differentiation method is used. In order to circumvent the inherent instability of the time-reversed lattice Boltzmann scheme, a method based on a split of the lattice Boltzmann equation into a mean and a perturbation component is used. Lattice Boltzmann method formulation around an arbitrary base flow is recalled and specific applications to acoustics are presented. The implementation of the noise source detection method for two-dimensional weakly compressible (low Mach number) flows is discussed, and the applicability of the method is demonstrated. (C) 2013 Acoustical Society of America. [http://dx.doi.org/10.1121/1.4776181]
引用
收藏
页码：1293 / 1305
页数：13
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