Convection-dominated melting of phase change material in partially heated cavity: lattice Boltzmann study

RETRACTED ARTICLE: Melting of nanoparticles-enhanced phase change material (NEPCM) in vertical semicircle enclosure: numerical study

“…Methods based on the Lattice Boltzmann equations (LBE) have recently evolved as an approach to direct solutions of the macroscopic equations in porous media [15][16][17][18], nanofluid [19], phase change [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35], shock tube problem [36], droplet formation [37,38], turbulent natural convection [39] and so on [40][41][42]. Due to its particulate nature, the LBM has some benefits over the conventional Computational fluid dynamics (CFD) techniques such as handling complex boundaries and physical phenomena, the straightforward implementation on parallel machines, the incorporation of microscopic interactions and high speed of solving.…”

Thermal Lattice Boltzmann Simulation of Entropy Generation within a Square Enclosure for Sensible and Latent Heat Transfers

“…However, for an LBM implementation, one can refer to the works of Miller et al [27], Semma et al [28] and, recently, Su and Davidson [29]. Note that our scheme is close to the bounce-back approach proposed by Huber et al [15] and recently used by Jourabian et al [16] to define the solid regime; however, our enhancement is to adopt a partial bounce-back approach rather than a full bounce-back. Hence, to check out our model, we resumed the convection melting problem handled in these references, keeping the same settings (see Table 1).…”

“…The current model has been implemented to carry out the 2D natural convection and the melting with natural convection. The obtained results have been compared with selected models that have adopted the same LBM scheme: Huber et al [15] and Jourabian et al [16].…”

“…However, to simulate the phase change process, the partial bounce-back approach was employed, with a modification of the velocity field to mimic the solid, liquid and mushy zones. This approach is considered an enhancement of the existing models based on the full bounce-back approach [15,16].…”

Unconstrained melting and solidification inside rectangular enclosure

“…The first study on PCM was presented by Barkmann and Wessling [2] for use in buildings, and later by other researchers [3][4][5]. There is a large number of experimental and numerical works on melting and solidification of PCM [6][7][8][9][10], and also its usage as thermal management in building [11][12][13][14], electronic devices [15][16] and solar energy [17][18][19][20].Most investigated geometries in melting and freezing process are sphere (spherical capsule), cylinder (shell and tube heat exchanger) and rectangular enclosure. Khodadadi and Zhang [21] studied the effect of buoyancy-driven convection on constrained melting of PCM in a spherical container numerically.…”