Colloidal Dynamics Simulations of Rheology and Stability of Concentrated Fuel Slurries
This report presents the results of a Phase I SBIR project to calculate properties of concentrated colloidal suspensions using computer simulation methods. Shear viscosities were calculated as a function of shear rate and particle volume fraction. Good agreement was obtained with experimental viscosities for comparable systems. The simulation results are sensitive to the type, strength and range of the potential interactions used to describe the dispersion. These results demonstrate that the NEBD technique is capable of describing the essential features of sheared suspension behaviour. They also establish the feasibility and desirability of using NEBD simulation methods as a predictive engineering tool for the design of slurries.
G. Wilemski, "Colloidal Dynamics Simulations of Rheology and Stability of Concentrated Fuel Slurries," Defense Technical Information Center, pp. 1 - 49, Physical Sciences, Inc., Apr 1987.
Keywords and Phrases
Fuels; Slurries; Rheology; Colloids; Dynamics; Simulation; Computerized Simulation; Computations; Brownian Motion; Nonequilibrium Flow; Interactions; Equilibrium (general)
© 1987 Physical Sciences, Inc., All rights reserved.
01 Apr 1987
Prepared for Air Force Office of Scientific Research, Contract No. F49620-86-C-0072