Transient 3D Free-surface Newtonian And
Viscoelastic Flow As Applied To Material Processing

R.E. Khayat; A. Derdouri

doi:10.2495/MB970241

Transient 3D Free-surface Newtonian And Viscoelastic Flow As Applied To Material Processing

Price

Free (open access)

Transaction

WIT Transactions on Modelling and Simulation

Volume

Pages

Published

1997

Size

882 kb

Paper DOI

10.2495/MB970241

WIT Press

Author(s)

R.E. Khayat & A. Derdouri

Abstract

An adaptive (Lagrangian) boundary element approach is proposed for the general three- dimensional simulation of confined free-surface flow of viscous incompressible fluids. The method is stable as it includes remeshing capabilities of the deforming free surface, and thus can handle large deformations. Newtonian fluids as well as viscoelastic fluids obeying the linear Maxwell constitutive model are considered. Based on the correspondence principle, the viscoelastic integral equations are derived in the time domain, thus avoiding the costly Laplace inversion. Only boundary and not volume integrals are involved. It is shown that the resulting equations, at a given time step, reduce to those corresponding to Stokes

Keywords

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Code

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