The enthalpy-based lattice Boltzmann method (LBM) for simulation of NePCM melting in inclined elliptical annulus

Jourabian, Mahmoud; Darzi, A. Ali Rabienataj; Akbari, Omid Ali; Toghraie, Davood

doi:10.1016/j.physa.2019.123887

Cited by 51 publications

(10 citation statements)

References 85 publications

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“…Formally, the collision and streaming processes of the CLB equation for solving Equation (25) are still given by Equations ( 16) and ( 17), respectively. However, to match the enthalpy-based energy Equation ( 25), the equilibrium central moments n eq f i and raw moments n eq f i should be chosen as follows:…”

Section: Enthalpy-based Clb Model For Solid-liquid Phase Change In Me...mentioning

confidence: 99%

“…In the enthalpy-based approach, the diffusive phase interface as well as the liquid and solid phases are distinguished via liquid fraction, which makes this approach simple and effective. In the past decade, the enthalpybased approach has also been successfully adopted to investigate solid-liquid phase change in porous media by many researchers [23][24][25][26][27][28]. These enthalpy-based LB models are mainly constructed based on Bhatnagar-Gross-Krook (BGK) [23][24][25] and multiple-relaxation-time (MRT) [26][27][28] models.…”

Section: Introductionmentioning

confidence: 99%

“…In the past decade, the enthalpybased approach has also been successfully adopted to investigate solid-liquid phase change in porous media by many researchers [23][24][25][26][27][28]. These enthalpy-based LB models are mainly constructed based on Bhatnagar-Gross-Krook (BGK) [23][24][25] and multiple-relaxation-time (MRT) [26][27][28] models. As reported in Ref.…”

Section: Introductionmentioning

confidence: 99%

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Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model

Xiao

Liu

2022

Entropy

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A cascaded lattice Boltzmann (CLB) model is constructed for simulating heat transfer in metal-foam-based solid-liquid phase change materials (PCMs). The present model captures the phase interface implicitly via the enthalpy methodology, and to avoid iterations in simulations, the CLB equation of the PCM employs the enthalpy as the basic evolution variable through modifying the cascaded collision process. Numerical results demonstrate the effectiveness and practicability of the CLB model for investigating heat transfer in solid-liquid PCMs with metal foams. The effects of the inertial coefficient, permeability and porosity on the melting process are investigated. The results indicate that the empirical correlations of inertial coefficient and permeability based on packed beds overestimate the melting rate at high porosities. Moreover, the porosity has significant impact on phase-change processes. The melting rate increases as the porosity of the metal foam decreases since heat conduction through high thermal conductive metal foam dominates the total heat transfer.

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Section: Enthalpy-based Clb Model For Solid-liquid Phase Change In Me...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model

Xiao

Liu

2022

Entropy

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“…The shapes of the shell and the central tube are assumed to be circular or elliptical. Jourabian et al (2020) studied constrained melting of ice as a PCM in inclined elliptical annulus. Zhao et al (2019Zhao et al ( , 2020 recently studied geometrical effects on energy storage tank with multiple tubes, and the fins are added by topology optimization method.…”

Section: Frontiers In Heat and Mass Transfermentioning

confidence: 99%

Performance Optimization of Phase Change Heat Accumulator With Turn-Over Triangular Tube

Zhao¹,

Zheng²

2021

Frontiers in Heat and Mass Transfer

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The performance optimization of the triangular-tube phase change heat accumulator is carried out from three aspects. The first is to compare with three different types tubes: the traditional round tube, the square tube, and the elliptical tube. Results show that equilateral triangle tube has the best heat storage and release characteristics. The second is to study the sub-cavity heat accumulator model based on multiphase change materials on the basis of the triangular tube. The third is to study the turn-over triangular tube heat accumulator. Both the flip function through discrete point fitting and the best reversal time are obtained.

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“…Han et al [29] analyzed the influence of dispersion, volume fraction and diffusion direction of metal particles on the thermal performance of phase change material. Mahmoud et al [30] constructed the alloy porous medium matrix in the oblique elliptic ring, and the phase change material was ice. The effective thermal diffusion coefficient and effective specific heat capacity were used to uniformly calculate the energy equation of the two phase change regions.…”

Section: Introductionmentioning

confidence: 99%

Numerical study on the effect of thermal diffusivity ratio in phase change heat transfer of crude-oil using lattice Boltzmann method

et al. 2023

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When the long distance crude oil pipeline is stopped, the crude oil will solidify gradually with the decrease of the temperature in the pipeline. The solid-liquid thermal diffusivity can reflect the ability of heat diffusion in the phase change heat transfer process of crude oil stop-transport. Based on the mathematical model of oil phase transition heat transfer established by enthalpy method, the lattice Boltzmann method isused to solve the governing equations of oil phase transition heat transfer. According to the simulation results, the phase change heat transfer process of crude oil is divided into three stages, and the mechanism of the phase change heat transfer process of crude oil is studied. The results show that the influence of solid-liquid thermal diffusion ratio increase gradually with time. When Fourier number? 0.043, Nusselt number and convective heat transfer intensity of mobile phase interface slightly decrease with the increase of solid-liquid thermal diffusivity ratio. The research results of this paper can provide a reference for controlling the stoppage time of pipeline.

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The enthalpy-based lattice Boltzmann method (LBM) for simulation of NePCM melting in inclined elliptical annulus

Cited by 51 publications

References 85 publications

Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model

Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model

Performance Optimization of Phase Change Heat Accumulator With Turn-Over Triangular Tube

Numerical study on the effect of thermal diffusivity ratio in phase change heat transfer of crude-oil using lattice Boltzmann method

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