Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model
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...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Entropy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1099-4300/24/3/307 |
| _version_ | 1797446678088777728 |
|---|---|
| author | Xiang-Bo Feng Qing Liu |
| author_facet | Xiang-Bo Feng Qing Liu |
| author_sort | Xiang-Bo Feng |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-09T13:44:01Z |
| format | Article |
| id | doaj.art-3a192c48cf5f42f19a0c439c5a0cfa26 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-09T13:44:01Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-3a192c48cf5f42f19a0c439c5a0cfa262023-11-30T21:02:43ZengMDPI AGEntropy1099-43002022-02-0124330710.3390/e24030307Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann ModelXiang-Bo Feng0Qing Liu1Xi’an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi’an 710123, ChinaSchool of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaA 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.https://www.mdpi.com/1099-4300/24/3/307cascaded collision modellattice Boltzmann modelmeltingenthalpy methodologymetal foams |
| spellingShingle | Xiang-Bo Feng Qing Liu Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model Entropy cascaded collision model lattice Boltzmann model melting enthalpy methodology metal foams |
| title | Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model |
| title_full | Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model |
| title_fullStr | Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model |
| title_full_unstemmed | Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model |
| title_short | Simulating Solid-Liquid Phase-Change Heat Transfer in Metal Foams via a Cascaded Lattice Boltzmann Model |
| title_sort | simulating solid liquid phase change heat transfer in metal foams via a cascaded lattice boltzmann model |
| topic | cascaded collision model lattice Boltzmann model melting enthalpy methodology metal foams |
| url | https://www.mdpi.com/1099-4300/24/3/307 |
| work_keys_str_mv | AT xiangbofeng simulatingsolidliquidphasechangeheattransferinmetalfoamsviaacascadedlatticeboltzmannmodel AT qingliu simulatingsolidliquidphasechangeheattransferinmetalfoamsviaacascadedlatticeboltzmannmodel |