Cooper, Laura J. and Sprittles, James E. (2020) Data for A computational study of fluctuating viscoelastic forces on trapped interfaces in porous media. [Dataset]

	Other (MATLAB workspace file) 20200708_Data_FluctuatingForces.mat - Published Version Available under License Creative Commons Attribution 4.0. Download (3698Kb)
	Plain Text (Readme file) README.txt - Accepted Version Available under License Creative Commons Attribution 4.0. Download (227b)

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Abstract

In immiscible liquid–liquid Newtonian flow through a porous medium, one phase often becomes trapped in corners or narrow regions by capillary forces as blobs (e.g. oil ganglia) deep within the matrix, whilst the second flow exhibits a steady and laminar flow (e.g. of water) that has negligible influence on the trapped liquid–liquid interfaces. However, recent microfluidic experiments have shown the situation radically changes when using a viscoelastic liquid, which is capable of exhibiting pore-scale unsteady flow that can deform such interfaces. Here, a computational model is developed which allows us to capture the forces that cause this behaviour and provide a framework for future investigations of this system. In this paper, the forces on trapped interfaces are investigated for the first time. Notably, when the viscoelastic flow becomes unsteady the forces on the trapped interfaces not only fluctuate but also become amplified, thus supporting experimental findings showing they can be used to free such interfaces. At Weissenberg values of 1.5 and above the fluctuations become important and the mean values of the forces on the interfaces decrease as the fluctuations grow.

Item Type:	Dataset
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software Q Science > QC Physics Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science, Engineering and Medicine > Science > Mathematics
Type of Data:	Computational Data
Library of Congress Subject Headings (LCSH):	Viscoelastic materials, Fluid mechanics, Porous materials -- Fluid dynamics
Publisher:	University of Warwick, Mathematics Institute
Official Date:	8 July 2020
Dates:	Date Event 8 July 2020 Published
Collection date:	Date from Date to 2019 2020
Status:	Not Peer Reviewed
Publication Status:	Published
Media of Output (format):	.mat
Access rights to Published version:	Open Access (Creative Commons)
Copyright Holders:	University of Warwick
Description:	Data record consists of the raw data in a matlab workspace file and an accompanying readme file.
Date of first compliant deposit:	8 July 2020
Date of first compliant Open Access:	8 July 2020
RIOXX Funder/Project Grant:	Project/Grant ID RIOXX Funder Name Funder ID EP/N016602/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 UNSPECIFIED Leverhulme Trust http://dx.doi.org/10.13039/501100000275 EP/P020887/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 EP/P031684/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266
Related URLs:	Related item in WRAP Other
Contributors:	Contribution Name Contributor ID Depositor Cooper, Laura J. UNSPECIFIED

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