Wednesday, February 21

MS73
Multiscale/Multiphysics Methods for Gas-Solid Reacting Flows

3:00 PM - 5:00 PM
Room: Newport Beach I - B1

Gas-solid chemically reacting flows are omnipresent in many multiphase flow reactors in various industries like Chemical, Fossil and Nuclear. The challenging aspect of modeling these reacting flows are the wide range of both temporal and spatial scales encountered in these systems. The time scales vary from pico-seconds for the atomistic scale processes to the thousands of seconds for the device scale operations. The spatial scales vary from nano-meters at the atomistic scale to several meters at the device scale. This mini-symposium introduces this challenging problem along with three talks on specifically bridging the multiscale/multiphysics methods spanning certain scales.

Organizer: Sreekanth Pannala
Oak Ridge National Laboratory
Srdjan Simunovic
Oak Ridge National Laboratory

3:00-3:25 Multiscale/Multiphysics Methods Used in Heterogeneous Chemically Reacting Flows

Thomas O'Brien, National Energy Technology Laboratory

3:30-3:55 Quadrature-Based Moment Methods for Polydisperse Multiphase Flows

Rodney O. Fox, Iowa State University; Prakash Vedula, University of Oklahoma

4:00-4:25 Coupling Molecular and Continuum Modeling for Detailed Reaction Kinetics of TRISO Fuel Coating

Francine Battaglia, Iowa State University; Rodney O. Fox, Mark S. Gordon, and Yingbin Ge, Iowa State University

4:30-4:55 Wavelet-Based Multiscale Approach for Heterogeneous Chemically Reactive Flows: A Simple Case Study of Diffusion/Reaction Problem

George Frantziskonis and Sudib Misra, University of Arizona; Sreekanth Pannala, Srdjan Simunovic, Stuart Daw, and Phani K. Nukala, Oak Ridge National Laboratory; Rodney O. Fox, Iowa State University; Pierre Deymier, University of Arizona