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Adaptive solutions for viscoelastic flows

✍ Scribed by Mutlu, I. ;Townsend, P. ;Webster, M. F.

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
834 KB
Volume
12
Category
Article
ISSN
1069-8299

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✦ Synopsis

This work describes the implementation of an adaptive procedure for viscoelastic flows. Finite element simulations are conducted using a Taylor-Galerkin/pressure correction scheme. The constitutive equations considered are those for an Oldroyd-B and a Phan-ThienlTanner model. The adaptive meshing technique is h-refined by grid remeshing, based on a Delaunay procedure. Results are presented for two benchmark problems, namely flow past a sphere in a cylindrical tube and flow in an annular converging tube. It is concluded from the results that the use of an adaptive procedure with mesh regeneration enables an optimized mesh to be devised and a predicted accuracy to be attained.

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