 |
Center for Nonlinear Studies |
Polydisperse multiphase flows arise in many industrial and environmental applications, and almost always involve a disperse phase with particles of different sizes and compositions. Moreover, the disperse-phase volume fraction covers a wide range, even in the same application. In this lecture, I will review recent advances in using kinetic-based moment methods to develop well-posed Eulerian-Eulerian CFD models. This approach relies on formulating a kinetic equation for the disperse phase valid from close-packed to dilute conditions, coupled to a modified Navier-Stokes equation for the continuous phase. Through numerous examples, I will demonstrate that by including added mass and particle-fluid-particle stresses, this modeling approach is well posed for polydisperse flows with arbitrary material density ratios (i.e., bubbly, liquid-solid and gas-solid flows).
Bio: Professor Fox joined Iowa State University in 1998, where he is Distinguished Professor in Engineering since 2010. From 1987-88, he was a NATO Postdoctoral Fellow at LSGC in Nancy, France, and has held visiting professorships in Belgium, Denmark, France, Italy, Switzerland, and The Netherlands. His numerous professional awards include the NSF Presidential Young Investigator Award in 1991 and the ISU Outstanding Achievement in Research Award in 2007. Prof. Fox was elected Fellow of the American Physical Society in 2007 and of the AIChE in 2020. From 2012-14, he was a Marie-Curie Senior Fellow at the Ecole Centrale in Paris, France. In 2015 he was an International Francqui Professor in Belgium, and a Chaire d'Attractivite at the Universite Federale Toulouse Midi-Pyrenees, France. In 2016 he was selected for the North American Mixing Forum Award for Excellence and Sustained Contributions to Mixing Science and the Jean D'Alembert Senior Chair at the University of Paris-Saclay, CentraleSupelec. Professor Fox has made numerous ground-breaking contributions to the field of multiphase and reactive flow modeling. His group spearheaded many fundamental advances in the development of novel computational fluid dynamics models. The impact of Fox's work extends far beyond chemical engineering and touches every technological area dealing with turbulent flow and chemical reactions.
Need a ride? T-Division will provide bus transport from TA-3 Bldg. 1690 to TA-53 for the first 20 badge-holders to register using this Google form. Trouble with the form? Email lydia.menzer@lanl.gov.
Host: Sara Calandrini (scalandrini@lanl.gov)