Effects of Nanoparticles on Melting Process with Phase-Change Using the Lattice Boltzmann Method
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ArticleKAUST Department
Computational Transport Phenomena LabEarth Science and Engineering Program
Physical Science and Engineering (PSE) Division
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2017-05-04Online Publication Date
2017-05-04Print Publication Date
2017Permanent link to this record
http://hdl.handle.net/10754/623407
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In this work, the problem of nanoparticles dispersion effects on coupled heat transfer and solid-liquid phase change has been studied. The lattice Boltzmann method (LBM) enthalpy-based is employed. The collision model of lattice Bhatangar-Gross-Krook (LBGK) is used to solve the problem of 1D melting by conduction. On the other hand, we use the model of multi-distribution functions (MDF) to calculate the density, the velocity and the temperature for the problem of 2D melting by free convection, associated with different boundary conditions. In these simulations, the volume fractions of copper nanoparticles (0-2%) added to water-base fluid and Rayleigh numbers of 103to105. We use the Chapman-Enskog expansion to derive the governing macroscopic quantities from the mesoscopic lattice Boltzmann equation. The results obtained by these models have been compared to an analytical solution or other numerical methods. The effects of nanoparticles on conduction and natural convection during the melting process have been investigated. Moreover, the influences of nanoparticles on moving of the phase change front, the thermal conductivity and the latent heat of fusion are also studied.Citation
Ibrahem AM, El-Amin MF, Sun S (2017) Effects of Nanoparticles on Melting Process with Phase-Change Using the Lattice Boltzmann Method. Results in Physics. Available: http://dx.doi.org/10.1016/j.rinp.2017.04.032.Publisher
Elsevier BVJournal
Results in PhysicsAdditional Links
http://www.sciencedirect.com/science/article/pii/S2211379717302966ae974a485f413a2113503eed53cd6c53
10.1016/j.rinp.2017.04.032
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Except where otherwise noted, this item's license is described as © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/