Abstract
The motion of a sphere accelerating from rest along the center line of a cylindrical tube filled with a polyisobutylene (PIB) Boger fluid is examined both experimentally, using a digital imaging system, and numerically via a Lagrangian finite element method for single and multimode Oldroyd models including inertia. Spheres of diameter 2.54 cm and varying densities are released in a tube radius 5.23 cm. Deborah numbers in the range 0.4
Original language | English |
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Journal | Journal of Rheology |
Volume | 38 |
Issue number | 2 |
Pages (from-to) | 377-403 |
ISSN | 0148-6055 |
DOIs | |
Publication status | Published - 1994 |
Bibliographical note
Copyright (1994) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of PhysicsKeywords
- CREEPING FLOW
- ELASTICITY
- DRAG
- Polymer Process
- Numerical modelling