Dynamic Simulation of Suspensions of Non-Spherical Particles by Boundary Element Techniques

Autor: D. R. Boyington, D. S. Soane
Rok vydání: 1989
Předmět:
Zdroj: International Polymer Processing. 4:35-43
ISSN: 2195-8602
0930-777X
DOI: 10.3139/217.890035
Popis: A method is developed for the simulation of the transient structure and rheology of concentrated suspensions of generally-shaped particles. This procedure is a modification of the Stokesian dynamics method using boundary element to evaluate the multiple interactions of an arbitrary number of particles. The effect of commonly-used pairwise additivity assumptions on the particle velocities and suspension stress is shown for several three-spheroid structures. In general, superposition of forces gives better results than additivity of disturbance velocities. Methods for improving the simulation and an experimental program to measure the transient particle orientations and viscosity of concentrated suspensions are discussed.
Databáze: OpenAIRE