We consider the equations for time-dependent creeping flow of an upper convected Maxwell fluid in the limit of infinite Weissenberg number. We identify a particular class of solutions which is analogous to potential flow and discuss several examples. We also discuss more general solutions for two-di
Well-posedness of the upper convected Maxwell fluid in the limit of infinite Weissenberg number
β Scribed by Xiaojun Wang; Michael Renardy
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 222 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0170-4214
- DOI
- 10.1002/mma.1335
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β¦ Synopsis
Communicated by W. SprΓΆΓig
An iteration scheme is used to show the well-posedness of the initial-boundary value problem for incompressible hypoelastic materials, which arise as a high Weissenberg number limit of viscoelastic fluids. We first assume that the stress is a rank-one matrix T = qq T ,qβ R n , and develop energy estimates to show that the problem is locally wellposed. This problem is related to incompressible ideal magnetohydrodynamics (MHD). We show that the general case T = CC T ,C β R nΓn can be handled by a generalization of the method we developed.
π SIMILAR VOLUMES
Elastic effects on the hydrodynamic instability of inviscid parallel shear flows are investigated through a linear stability analysis. We focus on the upper convected Maxwell model in the limit of infinite Weissenberg and Reynolds numbers. We study the effects of elasticity on the instability of a f