Korea-Australia Rheology Journal, Vol.17, No.4, 171-180, December, 2005
Numerical simulations of elliptic particle suspensions in sliding bi-periodic frames
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We present numerical results for inertialess elliptic particle suspensions in a Newtonian fluid subject to simple shear flow, using the sliding bi-periodic frame concept of Hwang et al. (2004) such that a particulate system with a small number of particles could represent a suspension system containing a large number of particles. We report the motion and configurational change of elliptic particles in simple shear flow and discuss the inter-relationship with the bulk shear stress behaviors through several example problems of a single, two-interacting and ten particle problems in a sliding bi-periodic frame. The main objective is to check the feasibility of the direct simulation method for understanding the relationship between the microstructural evolution and the bulk material behaviors.
Keywords:direct numerical simulation;elliptic particle suspension;sliding bi-periodic frame;bulk stress;elliptic integral of the second kind
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