Authors Syrakos A., Dimakopoulos Y., Georgiou G.C., Tsamopoulos J. Abstract Numerical simulations of the flow in an extrusion damper are performed using a finite volume method. The damper is assumed to consist of a shaft, with or without a spherical bulge, oscillating axially in a containing cylinder filled with a […]
Bingham fluids
3 posts
Authors Smyrnaios D.N., Tsamopoulos J.A. Abstract The axisymmetric squeeze flow of viscoplastic materials is examined using either the original Bingham constitutive equation or the approximate model suggested by Papanastasiou. Previous theoretical analyses of this problem, using the standard lubrication approximation, have led to conflicting results, whereby the material around the […]
Authors Tsamopoulos J.A., Chen M.F., Borkar A.V. Abstract The spin coating of a viscoplastic material is studied using a continuous viscosity function. Thus, the transient model requires the calculation of only velocity, pressure and the moving-free surface of the liquid film, but not the calculation of the yield surface within […]