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DOI	10.1016/j.advwatres.2020.103646
	On upscaling pore-scale models for two-phase flow with evolving interfaces
	Sharmin S.; Bringedal C.; Pop I.S.
发表日期	2020
ISSN	0309-1708
卷号	142
英文摘要	The modelling and simulation of the unsaturated flow or the flow of two immiscible fluid phases in a porous medium is challenging as this flow takes place through the pores of the medium, which form a highly complex domain. Next to the complexity of the domain, a major challenge is to account for the interface separating the fluids, or the unsaturated fluid from the inert filling part, as the location of this interface is not known a-priori. The evolution of this interface depends on the flow of both fluids and of the surface tension. Moreover, the surface tension may depend on the concentration of a surfactant dissolved in one fluid phase. In this work, such aspects are taken into account, and effective, Darcy-scale models are derived based on the known physics at the pore scale. In this sense a thin strip is used as the representation of a single pore in the porous medium. The Darcy-scale models are derived for various regimes, accounting for different pore-scale processes. Numerical examples show that the upscaled models are a good approximation of the transversal average of the solution to the pore-scale models, as the ratio of the width and the length of the pore approaches zero. © 2020
关键词	Porous materials Surface tension Complex domains Fluid-phase Immiscible fluids Modelling and simulations Pore-scale model Porous medium Scale models Unsaturated flows Two phase flow computer simulation Darcy law numerical model pore space two phase flow unsaturated flow
语种	英语
来源机构	Advances in Water Resources
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131767
推荐引用方式 GB/T 7714	Sharmin S.,Bringedal C.,Pop I.S.. On upscaling pore-scale models for two-phase flow with evolving interfaces[J]. Advances in Water Resources,2020,142.
APA	Sharmin S.,Bringedal C.,&Pop I.S..(2020).On upscaling pore-scale models for two-phase flow with evolving interfaces.,142.
MLA	Sharmin S.,et al."On upscaling pore-scale models for two-phase flow with evolving interfaces".142(2020).