Numerical study of natural convection and acoustic waves using the lattice Boltzmann method

Benhamou, Jaouad; Jami, Mohammed; Mezrhab, Ahmed; Botton, Valéry; Henry, Daniel

doi:10.1002/htj.21800

Cited by 22 publications

(36 citation statements)

References 33 publications

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“…The Lattice Boltzmann method with a single relaxation time (SRT) [13,14] or on multiple relaxation time [15,21] is a numerical approach applicable in various fields such as chemistry, biology, medicine etc [22,26] and very applicable in the domain of physics and specifically in the fluid flow and heat transfer fields. Numerous research and numerical and experimental studies have been carried out in this direction.…”

Section: Numerical Schemementioning

confidence: 99%

Effect of a Flat Plate on Drag Force Reduction and Heat Transfer Characteristics Around Three Heated Square Obstacles

Admi¹,

Lahmer²,

Moussaoui³

et al. 2022

J. Phys.: Conf. Ser.

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In this research, a numerical investigation is performed to simulate the fluid flow and the isotherms lines around three square cylinders placed side-by-side vertically and equally spaced in a bidimensionnel horizontal channel controlled by a flat plate at a fixed Reynolds number (Re = 100). The numerical approach used is the double multiple relaxation time of the lattice Boltzmann method (DMRT-LBM). The objective of the inclusion of the plate is to control the vortex shedding and improve the characteristics of the heat transfer around the squares cylinders. The numerical code is validated with the numerical and experimental results existing in the literature for flow past around a square cylinder with and without a control device. The impact of the length of a flat plate on the streamlines, the isotherms lines and the drag force are presented. The results obtained show the inclusion of the plate decreases the drag force and increases the thermal exchange.

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Section: Numerical Schemementioning

confidence: 99%

Effect of a Flat Plate on Drag Force Reduction and Heat Transfer Characteristics Around Three Heated Square Obstacles

Admi¹,

Lahmer²,

Moussaoui³

et al. 2022

J. Phys.: Conf. Ser.

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“…Numerically, natural convection can be produced by introducing a discretized force to the lattice Boltzmann equation (Equation ( 1)) [16,17]. This force is defined as:…”

Section: Validationmentioning

confidence: 99%

Application of Hybrid Method Based On MRT-Lattice Boltzmann and Finite Difference to Study Heat Transfer in Three Dimensions

Benhamou

Lahmer

Jami

et al. 2022

J. Phys.: Conf. Ser.

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The importance of studying the cooling of electronic components, which can be represented by obstacles, by natural or forced convection, has led our research laboratory to study this type of problem in 2D for many years. In this present article, the code is developed to be able to simulate heat transfers in 3D using a hybrid method. This approach is built on two numerical approaches viz the “Lattice Boltzmann method” (LBM) for the study of the fluid flow and the “Finite Difference Method” (FDM) for the calculation of the temperature field. The present numerical code is validated in the case of natural convection in a cubic cavity packed with air. Subsequently, the heat exchange between two cold vertical walls and a heated obstacle placed at center of cavity is studied.

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“…The Lattice Boltzmann Method (LBM) offered an important advantage to simulate complex physical phenomena to understand the physical mechanism. [19][20][21][22] This alternative method is characterized by its accuracy, flexibility, and simplicity to simulate the heat transfer and fluid flow compared with conventional CFD methods. Pirouz et al 23 used LBM to investigate the conjugate thermal transfer in a horizontal channel containing obstacles with taking into consideration the impact of the conductivity ratio and Reynolds number.…”

Section: Introductionmentioning

confidence: 99%

Improvement of the heat transfer quality by air cooling of three‐heated obstacles in a horizontal channel using the lattice Boltzmann method

et al. 2022

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This study focuses on the cooling of three heated obstacles with different heights mounted on the bottom of the channel wall using different aspects that influence the enhancement of the heat exchange, as is known in the concept of cooling electronic devices. The lattice Boltzmann method associated with multiple relaxation times (LBM-MRT) was adopted to simulate the physical configurations of the studied system. In

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Numerical study of natural convection and acoustic waves using the lattice Boltzmann method

Cited by 22 publications

References 33 publications

Effect of a Flat Plate on Drag Force Reduction and Heat Transfer Characteristics Around Three Heated Square Obstacles

Effect of a Flat Plate on Drag Force Reduction and Heat Transfer Characteristics Around Three Heated Square Obstacles

Application of Hybrid Method Based On MRT-Lattice Boltzmann and Finite Difference to Study Heat Transfer in Three Dimensions

Improvement of the heat transfer quality by air cooling of three‐heated obstacles in a horizontal channel using the lattice Boltzmann method

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