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Now showing items 11-15 of 15
Weakly compressible Poiseuille flows of a Herschel-Bulkley fluid
(2009)
In this work, we derive approximate semi-analytical solutions of the steady, creeping, weakly compressible plane and axisymmetric Poiseuille flows of a Herschel-Bulkley fluid. Since the flow is weakly compressible, the ...
A two-dimensional numerical study of the stick-slip extrusion instability
(2007)
The time-dependent, compressible extrusion of a Carreau fluid is solved over the reservoir-die-extrudate region using finite elements in space and a fully implicit scheme in time. A nonmonotonic slip law based on experimental ...
Numerical simulation of the extrusion of strongly compressible Newtonian liquids
(2008)
The axisymmetric and plane extrusion flows of a liquid foam are simulated assuming that the foam is a homogeneous compressible Newtonian fluid that slips along the walls. Compressibility effects are investigated using both ...
On the combined effects of slip, compressibility, and inertia on the Newtonian extrudate-swell flow problem
(2013)
We solve both the planar and axisymmetric extrudate-swell flows of a compressible Newtonian liquid with Navier slip at the wall, using the finite-element method in space and a fully-implicit finite-difference scheme in ...
Numerical study of the combined effects of inertia, slip, and compressibility in extrusion of yield stress fluids
(2014)
The axisymmetric extrudate swell flow of a compressible Herschel–Bulkley fluid with wall slip is solved numerically. The Papanastasiou-regularized version of the constitutive equation is employed, together with a linear ...