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Article Dans Une Revue Journal of the Acoustical Society of America Année : 2013

Noise source identification with the lattice Boltzmann method

Orestis Malaspinas
  • Fonction : Auteur
Pierre Sagaut

Résumé

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.
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Dates et versions

hal-01298931 , version 1 (06-04-2016)

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Etienne Vergnault, Orestis Malaspinas, Pierre Sagaut. Noise source identification with the lattice Boltzmann method. Journal of the Acoustical Society of America, 2013, 133 (3), pp.1293. ⟨10.1121/1.4776181⟩. ⟨hal-01298931⟩
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