Computer Simulation of Fibre Suspension Flow through a Periodically Constricted Tube

Abstract

Present research work focus on a flow of fibres suspended in a Newtonian solvent through periodically constricted tube using a time marching finite element method. A semi implicit algorithm, so called, Taylor Galerken/pressure correction scheme is employed to seek the steady state numerical predictions. Effects of inertia and impact of undulation on flow structure and friction factor is investigated. Co linear fibre constitutive model is adopted along with quadratic closure approximation. Numerical solutions for pure Newtonian fluid are compared and close agreement is realized against experimental as well as numerical results.