Squeeze flow of Bingham plastics

The axisymmetric squeeze flow of a viscoplastic material is examined. The deformation and flow of such materials is important, since many multicomponent fluids encountered in industrial processes, are viscoplastic. The Bingham plastic constitutive equation is used and the transition from the solid state to the fluid one takes place at the “yield surface”. The aspect ratio of the geometry e (half the distance between the disks to their radius) is taken to be the small parameter of the analysis and a non-standard luorication approximation is employed.

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