TITLE:

PARTICLE INTERACTION AND PARTICLE-WALL COLLISIONS IN VISCOUS AND VISCOELASTIC FLOWS

DATE:

Friday, April 30th, 2010

TIME:

3:30 PM

LOCATION:

GMCS 214

SPEAKER:

Roger Rangel, Department of Mechanical and Aerospace Engineering, University of California Irvine, Irvine CA

ABSTRACT:

The motion of solid particles in fluids plays an important role in sedimentation, crystal growth, filtration, suspension rheology, microfluidic devices, and several other natural and industrial applications. Interaction and collision between particles is important in many of these applications. In order to elucidate the basic physics of the particle interaction and collision processes, a Distributed-Lagrange-Multiplier computational method for colliding particles in a solid-fluid system is developed. The collision between particles is simulated by taking into account the effect of particle roughness and the coefficient of restitution based on a dry collision. Results are in good agreement with experimental studies for the bouncing motion of a spherical particle onto a wall.

This is a seminar jointly hosted by the Aerospace Engineering Department and Computational Science Research Center.

HOST:

Jose Castillo

DOWNLOAD:

PDF File not avialable