Direct numerical simulations of acoustic streaming in standing wave tubes using the Lattice Boltzmann Method

Rafat, Yasser; Habibi, Kaveh; Mongeau, Luc

doi:10.1121/1.4800937

Cited by 8 publications

(4 citation statements)

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“…%R= CU= CQ=@a S(t) QDt=Q=B S(t) = 1 (A + p(t)) 1 dp(t) dt (12) %CU= xOW h} QaD u}vJ R}v A u; QO xm A = p tav jpj (13) OwQw p=L QO R=o |xQP xm |Dr=L QO "CU= C=v=Uwv |xvt=O 'sQv Ctqa …”

Section: T (L; T) = Tc If U(l; T)<0 @T @X (L; T) = S(t)t (L; T) @T @Tmentioning

confidence: 99%

مطالعه‌ی عددی پدیده‌ی جویبار در لوله‌ی حائل صوتی حرارتی

بهرامی¹,

کریمی²,

قربانیان³

2018

مهندسی مکانیک شریف

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“…%R= CU= CQ=@a S(t) QDt=Q=B S(t) = 1 (A + p(t)) 1 dp(t) dt (12) %CU= xOW h} QaD u}vJ R}v A u; QO xm A = p tav jpj (13) OwQw p=L QO R=o |xQP xm |Dr=L QO "CU= C=v=Uwv |xvt=O 'sQv Ctqa …”

Section: T (L; T) = Tc If U(l; T)<0 @T @X (L; T) = S(t)t (L; T) @T @Tmentioning

confidence: 99%

مطالعه‌ی عددی پدیده‌ی جویبار در لوله‌ی حائل صوتی حرارتی

بهرامی¹,

کریمی²,

قربانیان³

2018

مهندسی مکانیک شریف

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“…They also modeled the attenuation-driven acoustic streaming produced by an acoustic wave using the LB simulations [16]. Rafat et al [32] used the lattice Boltzmann numerical simulations to study the acoustic streaming in standing wave tubes.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation study of acoustic waves propagation and streaming using MRT-lattice Boltzmann method

Benhamou¹,

Jami²,

Mezrhab³

et al. 2022

International Journal for Computational Methods in Engineering

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This paper presents a numerical investigation of the propagation of acoustic waves generated by a linear acoustic source using the lattice Boltzmann method (LBM). The main objective of this study is to compute the sound pressure and acoustic force produced by a rectangular sound source located at the center of the west wall of a rectangular cavity, filled with water. The sound source is discretized into a set of point sources emitting waves according to the acoustic point source method. The interference between the generated cylindrical waves creates an acoustic beam in the cavity. An analytical study is carried out to validate these numerical results. The error between the numerical and analytical calculations of the wave propagation is also discussed to confirm the validity of the numerical approach. In a second step, the acoustic streaming is calculated by introducing the acoustic force into the LBM code. A characteristic flow structure with two recirculating cells is thus obtained.

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“…Indeed, the LBM was adopted to analyse the heat transfer in the TAR. 25 In the same work, the software 'PowerFLOW' was applied, which is based on the LBM to simulate the TAR with a stack formed of parallel plates. The LBM proved its performance in thermoacoustic systems.…”

Section: Introductionmentioning

confidence: 99%

“…The discretization method used in this article is the lattice Boltzmann method (LBM) due to its low simulation time, its simplicity and accuracy. 24 The LBM was used in previous work, on one hand, in the simulation of the TAR 25 and, on the other hand, in the simulation of the flow and the heat transfer in porous media. Therefore, the LBM is chosen in this article to simulate the TAR having a porous media as a stack.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of porous stack for a solar-powered thermoacoustic refrigerator

Miled

Dhahri

Mhimid

2020

Advances in Mechanical Engineering

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This article proposes a numerical analysis for performance improvement of the stack, which represents a crucial element on the solar-powered thermoacoustic refrigerator. The stack is considered as a saturated parallelepiped homogeneous porous media. Numerical simulation of the flow and the heat transfer in the thermoacoustic refrigerator is carried out. The physical flow is governed by the modified Darcy–Brinkmann–Forchheimer model. The governing equations are solved numerically using the lattice Boltzmann method. Furthermore, the local thermal equilibrium assumption is applied to examine heat transfer. Particular attention is paid a new form of the lattice Boltzmann equation system describing the flow and the heat transfer in porous media and fluid regions. The effects of several parameters characterizing the thermal behaviour in the porous medium are studied. The parametric results lead to the optimization of the porous media form. The presence of the viscous dissipation term in the heat transfer formulation within the thermoacoustic system is particularly highlighted, due to its significant effects introduced by the Eckert number.

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Direct numerical simulations of acoustic streaming in standing wave tubes using the Lattice Boltzmann Method

Cited by 8 publications

References 0 publications

مطالعه‌ی عددی پدیده‌ی جویبار در لوله‌ی حائل صوتی حرارتی

مطالعه‌ی عددی پدیده‌ی جویبار در لوله‌ی حائل صوتی حرارتی

Numerical simulation study of acoustic waves propagation and streaming using MRT-lattice Boltzmann method

Numerical investigation of porous stack for a solar-powered thermoacoustic refrigerator

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