http://dx.doi.org/10.4208/cicp.2009.09.201">
 

Document Type

Journal Article

Department/Unit

Department of Mathematics

Title

Simulating two-phase viscoelastic flows using moving finite element methods

Language

English

Abstract

Phase-field models provide a way to model fluid interfaces as having finite thickness; the interface between two immiscible fluids is treated as a thin mixing layer across which physical properties vary steeply but continuously. One of the main challenges of this approach is in resolving the sharp gradients at the interface. In this paper, moving finite-elementmethods are used to simulate interfacial dynamics of two-phase viscoelastic flows. The finite-element scheme can easily accommodates complex flow geometry and the moving mesh strategy can cluster more grid points near the thin interfacial areaswhere the solutions have large gradients. A diffusedmonitor function is used to ensure high quality meshes near the interface. Several numerical experiments are carried out to demonstrate the effectiveness of the moving mesh strategy. © 2010 Global-Science Press.

Keywords

Moving finite-element method, Non-Newtonian flow, Two-phase flow, Viscoelastic flow

Publication Date

2010

Source Publication Title

Communications in Computational Physics

Volume

7

Issue

2

Start Page

333

End Page

349

Publisher

Global Science Press

ISSN (print)

18152406

ISSN (electronic)

19917120

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