Publicou 12 edições por ano
ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508
IF:
2.5
5-Year IF:
1.9
Immediacy Index:
1
Eigenfactor:
0.00074
JCI:
0.6
SJR:
0.386
SNIP:
0.696
CiteScore™::
3.5
H-Index:
43
Indexado em
LATTICE BOLTZMANN SIMULATION OF EFFECTIVE THERMAL CONDUCTIVITY OF POROUS MEDIA WITH MULTIPHASE
Get access
RESUMO
The particle size, distribution, and orientation will decide the heat conduction behavior of porous media, and the trends of different effects can be obtained according to the various model assumptions. With or without consideration of the thermal contact resistance, the effects of the grain size on the thermal conductivity of porous materials may be adverse. The lattice Boltzmann method has microscopic and mesoscopic features that facilitate the processing of irregular boundary conditions for porous media. A corrected heat flux of the thermal lattice Boltzmann model is proposed in this paper, which naturally ensures heat flux continuity at the phase−phase interface. A new equivalent relaxation time is set at the phase−phase interface in the thermal lattice Boltzmann model, and through the use of the thermal energy transport model with series and parallel sets, the reliability of the new method in dealing with the phase−phase interface is verified. Porous media are generated by the quartet structure generation set. The effective thermal conductivity is obtained both with single-phase and multiphase fluid in the porous media. The effective thermal conductivity of porous media increases with increasing particle size. The connectivity of the particles along the heat transfer direction provides a preferential path for heat transfer, which creates higher effective thermal conductivity. When wetting fluid, with lower thermal conductivity, is absorbed on the porous matrix, the predicted effective thermal conductivity is close to the Hashin−Shtrikman lower bound.
-
Kim Yong-Jun, Tan Yu-Fei, Kim Sok, Two-dimensional lattice Boltzmann modeling for effective thermal conductivity in carbon black filled composites, Journal of Composite Materials, 52, 15, 2018. Crossref
-
Tembely Moussa, AlSumaiti Ali, Jouini Mohamed, Rahimov Khurshed, The Effect of Heat Transfer and Polymer Concentration on Non-Newtonian Fluid from Pore-Scale Simulation of Rock X-ray Micro-CT, Polymers, 9, 12, 2017. Crossref
-
Yang Chen, Lin Yixiong, Debenest Gérald, Nakayama Akira, Qiu Ting, Lattice Boltzmann simulation of asymptotic longitudinal mass dispersion in reconstructed random porous media, AIChE Journal, 64, 7, 2018. Crossref
-
Zhou Yinkang, Yan Changhong, Tang Anh Minh, Duan Chenglong, Dong Shengshi, Mesoscopic prediction on the effective thermal conductivity of unsaturated clayey soils with double porosity system, International Journal of Heat and Mass Transfer, 130, 2019. Crossref
-
田 巍, Lattice Boltzmann Simulation of Flow and Heat Transfer in Porous Media, Advances in Energy and Power Engineering, 07, 02, 2019. Crossref
-
Wang Dongdong, Wang Jinxin, Ding Shilei, Chu Huaqiang, Study on evaporation heat transfer performance of composite porous wicks with spherical-dendritic powders based on orthogonal experiment, International Journal of Heat and Mass Transfer, 156, 2020. Crossref
-
Jbeili Mayssaa, Zhang Junfeng, The generalized periodic boundary condition for microscopic simulations of heat transfer in heterogeneous materials, International Journal of Heat and Mass Transfer, 173, 2021. Crossref
-
Lin Yixiong, Yang Chen, Wan Zhongmin, Qiu Ting, Lattice Boltzmann simulation of intraparticle diffusivity in porous pellets with macro-mesopore structure, International Journal of Heat and Mass Transfer, 138, 2019. Crossref
-
Fei Wenbin, Ma Qirui, Soga Kenichi, Narsilio Guillermo A., A graph-theory based directed network feature for thermal anisotropy, International Journal of Heat and Mass Transfer, 194, 2022. Crossref