Viscous Dissipation Effects on Heat Transfer, Energy Storage, and Entropy Generation for Fluid Flow in a Porous Channel Submitted to a Uniform Magnetic Field

Amami, Bayssain; Dhahri, Hacen; Mhimid, Abdallah

doi:10.1615/jpormedia.v17.i10.10

Cited by 7 publications

(14 citation statements)

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“…The profile shows also an important dynamic boundary layer near the horizontal walls. 34 In the three parts of the resonator, a periodic symmetry is observed in the temporal velocity profiles throughout the resonator area with a phase difference of half a period (Figure 5). It is interesting to note that the amplitude of velocity decreases as the X-position becomes higher and gets away from the loudspeaker.…”

Section: Dynamic Fieldmentioning

confidence: 95%

“…Based on the previous assumptions and the binary parameter (equation (1)), the mass, the momentum and the energy equations are written as follows 23,33,34 Continuity equation…”

Section: And ð1þmentioning

confidence: 99%

“…The system equation systems of fluid and porous media parts were combined. 34,43 The binary parameter Y defined in equation (1) has been used…”

Section: The Velocity Fieldmentioning

confidence: 99%

“…where f i (M, t) is the density distribution function of particle located in the space position M(x, y) at the time step 't'. 34,43 The determination of the density distribution function over time and within the calculation domain is effectuated by the collision step. The BGK approximation is used 38,43…”

Section: The Velocity Fieldmentioning

confidence: 99%

“…The temperature distribution function is calculated by the same steps as with the calculation of density distribution function. The collusion and the streaming steps are described by equations ( 31) and ( 36), respectively 24,34,43…”

Section: The Velocity Fieldmentioning

confidence: 99%

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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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Section: Dynamic Fieldmentioning

confidence: 95%

“…Based on the previous assumptions and the binary parameter (equation (1)), the mass, the momentum and the energy equations are written as follows 23,33,34 Continuity equation…”

Section: And ð1þmentioning

confidence: 99%

“…The system equation systems of fluid and porous media parts were combined. 34,43 The binary parameter Y defined in equation (1) has been used…”

Section: The Velocity Fieldmentioning

confidence: 99%

Section: The Velocity Fieldmentioning

confidence: 99%

Section: The Velocity Fieldmentioning

confidence: 99%

See 3 more Smart Citations

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

Miled

Dhahri

Mhimid

2020

Advances in Mechanical Engineering

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Impact of entropy generation and temperature gradient heat source on Couette flow in a permeable magnetic field

Varma,

Ramaprasad,

Balamurugan

2024

Heat Trans

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This research paper focused on investigating the influence of various factors on steady Couette flow beneath a permeable bed. Factors studied included aligned magnetic field, thermal radiation, temperature gradient heat source, viscous dissipation, and Joules dissipation. The momentum and energy equations governing flow and heat transmission were analytically solved to predict the generation of entropy. The findings were visually presented through graphical representations, which effectively demonstrated the effect of these factors on the fluid's velocity, temperature, entropy production, and Bejan number. In addition, the shear stress and rate of heat transfer coefficient at the channel walls were computed and their behavior was documented in tables to provide further insights.

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Simulating Rayleigh Streaming and Heat Transfer in a Standing-Wave Thermoacoustic Engine via a Thermal Lattice Boltzmann Method

et al. 2022

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Viscous Dissipation Effects on Heat Transfer, Energy Storage, and Entropy Generation for Fluid Flow in a Porous Channel Submitted to a Uniform Magnetic Field

Cited by 7 publications

References 0 publications

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

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

Impact of entropy generation and temperature gradient heat source on Couette flow in a permeable magnetic field

Simulating Rayleigh Streaming and Heat Transfer in a Standing-Wave Thermoacoustic Engine via a Thermal Lattice Boltzmann Method

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