Levich Institute Seminar Announcement, 11/30/2004

Tuesday, 11/30/2004
2:00 PM
Steinman Hall, Room #312
(Chemical Engineering Conference Room)

Dr. Albert D. Harvey
Dow Chemical Company
Corporate Research and Development
Engineering Sciences Fluid Mechanics and Mixing


" Three-Phase Modeling of Foaming Flows "

ABSTRACT

A three-phase Eulerian model of foam flow is presented. The multi-dimensional reacting Navier-Stokes equations are formulated for a multi-species polymeric liquid phase, a bubble gas phase and an external air phase. Transport of dissolved gas from the polymeric liquid phase into the bubble phase is modeled using a multi-stage transport model. The transport model considers pressure differences between the bubble phase and the liquid phase as the primary mechanism for bubble growth in the early stages of foam formation. In late stages of foam evolution, the concentration difference is the dominate mechanism of mass transfer. The multi-dimensional, multiphase model has been parallelized in order to obtain efficient solutions to problems involving general geometric complexity. Some recent research on foam modeling is discussed and compared and the present model is applied to a number of foam flow applications.

BRIEF ACADEMIC/EMPLOYMENT HISTORY
  • Ph.D Mechanical Engineering, Louisiana State University, December 1991
  • Corporate R&D, Engineering Sciences, The Dow Chemical Company, December 1991-present

CURRENT RESEARCH INTERESTS

Recent interests include parallel computational methods for reacting flows, modeling of multiphase flows, foams, fibers spinning and turbulent reacting flows.