Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
671315 | Journal of Non-Newtonian Fluid Mechanics | 2007 | 10 Pages |
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.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Georgios C. Florides, Andreas N. Alexandrou, Georgios C. Georgiou,