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A lattice Boltzmann model for heat transfer in porous media

Chen, Sheng; Yang, Bo; Zheng, Chuguang

Authors

Sheng Chen

Bo Yang

Chuguang Zheng



Abstract

Porous media are commonly found not only in the nature but also in industries. Furthermore, porous media is an important research prototype for a diversity of disciplines. So far a REV (representative elementary volume) scale lattice Boltzmann (LB) model has been proposed and popularly used for investigation on heat transfer in porous media. Unfortunately, such model suffers from a serious drawback that it cannot address an investigated domain where the heat capacitance (the product of density and specific heat capacity) of porous media varies spatially obviously. Such deficit restricts dramatically its applicable range. The purpose of the present work is to remedy such serious shortcoming in a simple way. Numerical validation demonstrates the capability and reliability of the present model. In order to clearly show the advantage of the present model, here a single-relaxation-time LB model is taken as an example to illustrate how to remedy the shortcoming of previous models. Its multiple-relaxation-time counterpart can be established straightforwardly in the same way.

Journal Article Type Article
Publication Date Aug 31, 2017
Journal International Journal of Heat and Mass Transfer
Print ISSN 0017-9310
Electronic ISSN 0017-9310
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 111
APA6 Citation Chen, S., Yang, B., & Zheng, C. (2017). A lattice Boltzmann model for heat transfer in porous media. International Journal of Heat and Mass Transfer, 111, doi:10.1016/j.ijheatmasstransfer.2017.04.054
DOI https://doi.org/10.1016/j.ijheatmasstransfer.2017.04.054
Keywords Lattice Boltzmann method, Heat transfer, Porous media
Publisher URL https://doi.org/10.1016/j.ijheatmasstransfer.2017.04.054
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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