(633e) Comparison of Various Models for Dilute Turbulent Gas-Particle Flow with Inelastic Collisions and Turbulence Modulation

Rao, A. A. - Presenter, University of Florida
Curtis, J. S. - Presenter, University of Florida
Wassgren, C. R. - Presenter, Purdue University
Hancock, B. C. - Presenter, Pfizer Worldwide Research and Development

This work compares various closure models for the interaction/coupling terms, particle drag and solid stress for a dilute turbulent gas-particle flow with inelastic collisions and turbulence modulation in a Eulerian framework. The models are evaluated with benchmark experimental results of a fully developed turbulent gas-solid flow in a vertical pipe. Further, a new interpretation is provided for the interaction term which helps enhancing the understanding of these terms and also provides for a new robust model with the ability to predict turbulence enhancement and dampening phenomena.