Viscoelastic flow simulations in disordered porous media

Conference paper (2017)

Authors

S. De Eindhoven University of Technology
J. A.M. Hans Kuipers Eindhoven University of Technology
E.A.J.F. Peters Eindhoven University of Technology
J.T. Padding Intensified Reaction and Separation Systems - Mechanical, Maritime and Materials Engineering
Research Group
Intensified Reaction and Separation Systems (Mechanical, Maritime and Materials Engineering) (TU Delft)
CFD IBM Porous Media Viscoelastic
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Published Date

2017

Language

English

Reuse Rights

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Intensified Reaction and Separation Systems

Abstract

We investigate creeping flow of a viscoelastic fluid through a three dimensional random porous medium using computational fluid dynamics. The simulations are performed using a finite volume methodology with a staggered grid. The no slip boundary condition on the fluid-solid interface is implemented using a second order finite volume immersed boundary (FVMIBM) methodology [1]. The viscoelastic fluid is modelled using a FENE-P type constitutive relation. The simulations reveal a transition of flow structure from a laminar Newtonian regime to a nonstationary non-Newtonian regime with increasing viscoelasticity. We find that the flow profiles are mainly governed by the porous microstructure. By choosing a proper length scale a universal curve for the flow transition can be obtained. A study of the flow topology shows how in such disordered porous media shear, extensional and rotational contributions to the flow evolve with increased viscoelasticity.

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