Publication: Theoretical studies of phase-separation kinetics in a Brinkman porous medium
Issued Date
2010-05-18
Resource Type
ISSN
17518121
17518113
17518113
Other identifier(s)
2-s2.0-77952131570
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Physics A: Mathematical and Theoretical. Vol.43, No.20 (2010)
Suggested Citation
Waipot Ngamsaad, Jiraporn Yojina, Wannapong Triampo Theoretical studies of phase-separation kinetics in a Brinkman porous medium. Journal of Physics A: Mathematical and Theoretical. Vol.43, No.20 (2010). doi:10.1088/1751-8113/43/20/202001 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/29332
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Theoretical studies of phase-separation kinetics in a Brinkman porous medium
Author(s)
Other Contributor(s)
Abstract
Although the coarsening of binary fluid mixtures in porous media has been of great interest for some time, there are still no complete theories for describing the relevant mechanisms, and more theoretical work needs to be carried out. In this work, we have proposed a simple model for phase separation of binary fluids in a porous medium, where the Brinkman-extended-Darcy equation and Cahn-Hilliard equation are the dynamical constitutions. Using the dimensional analysis approach, our findings lead to the prediction of domain coarsening in a porous medium for several regimes, including the conventional power laws. In addition, we have found that slowed-down coarsening dynamics are caused by the hydrodynamic screening effect, which is governed by the logarithmic law for this regime. Our theoretical results are at least qualitatively consistent with previous reports using simulations or experiments. © 2010 IOP Publishing Ltd.