3D Numerical Study of Sound Waves Behavior in the Presence of Obstacles Using the D3Q15-Lattice Boltzmann Model

Benhamou, Jaouad; Channouf, Salaheddine; Jami, Mohammed

doi:10.1007/978-3-030-94188-8_11

Advanced Technologies for Humanity

2022

DOI: 10.1007/978-3-030-94188-8_11

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3D Numerical Study of Sound Waves Behavior in the Presence of Obstacles Using the D3Q15-Lattice Boltzmann Model

Jaouad Benhamou

Salaheddine Channouf

Mohammed Jami

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Cited by 2 publications

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“…In our previous studies, 22,23,40,42 the condition based on the vibration of the density is well discussed and shows good accuracy, in particular when the waves are emitted by a single point source. However, for a vibrating surface, it makes more sense to put the condition on the velocity than on the density to generate the waves.…”

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Three‐dimensional numerical study of heat transfer enhancement by sound waves using mesoscopic and macroscopic approaches

Benhamou¹,

Jami²

2022

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In this paper, a three‐dimensional (3D) numerical study of thermal convection and acoustic waves is presented using a hybrid method. This method consists of two computational approaches: the lattice Boltzmann method (LBM) with multiple relaxation times for the study of the fluid behavior and the finite difference method (FDM) for the description of the thermal exchange. The two approaches have been validated by studying two benchmark problems reported in the literature. The LBM was validated by simulating the flow induced by a lid‐driven cavity. The FDM was checked by simulating natural convection in a differentially heated cubic cavity filled with air. After this validation, the main focus was on the study of enhancement of the heat transfer in a 3D cavity using a vibrating acoustic source. The numerical study is performed for different values of the wave amplitude, the Rayleigh number ( italicRa ${Ra}$), and the sound source size. It shows that the heat transfer is significantly improved for a low italicRa ${Ra}$. However, for high italicRa ${Ra}$ values, natural convection cannot be neglected in front of forced convection. The transfer is also influenced by the variation of the source size. This allows obtaining the optimal size corresponding to the maximum heat exchange.

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Three‐dimensional numerical study of heat transfer enhancement by sound waves using mesoscopic and macroscopic approaches

Benhamou¹,

Jami²

2022

Heat Trans

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A systematic literature review on Lattice Boltzmann Method applied to acoustics

Bocanegra,

Misale,

Borelli

2024

Engineering Analysis with Boundary Elements

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3D Numerical Study of Sound Waves Behavior in the Presence of Obstacles Using the D3Q15-Lattice Boltzmann Model

Cited by 2 publications

References 18 publications

Three‐dimensional numerical study of heat transfer enhancement by sound waves using mesoscopic and macroscopic approaches

Three‐dimensional numerical study of heat transfer enhancement by sound waves using mesoscopic and macroscopic approaches

A systematic literature review on Lattice Boltzmann Method applied to acoustics

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