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Flow development in compression of a finite amount of a Bingham plastic
- Source :
-
Journal of Non-Newtonian Fluid Mechanics . Apr2007, Vol. 143 Issue 1, p38-47. 10p. - Publication Year :
- 2007
-
Abstract
- Abstract: The flow and shape evolution during the compression of a finite amount of a Bingham plastic is investigated by means of numerical simulations. The problem relates to the popular compression test used for the rheological characterization of non-Newtonian fluids. The flow is modelled in Lagrangian coordinates using the Papanastasiou regularization for the Bingham plastic and a mixed-Galerkin finite element method. Simulations have been performed for compression under both constant load and constant velocity. Results for various Reynolds and Bingham numbers are presented and discussed. [Copyright &y& Elsevier]
- Subjects :
- *FINITE element method
*GALERKIN methods
*LAGRANGE equations
*SPEED
Subjects
Details
- Language :
- English
- ISSN :
- 03770257
- Volume :
- 143
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Non-Newtonian Fluid Mechanics
- Publication Type :
- Academic Journal
- Accession number :
- 24460405
- Full Text :
- https://doi.org/10.1016/j.jnnfm.2007.01.004