Picture of scraped petri dish

Scrape below the surface of Strathprints...

Explore world class Open Access research by researchers at the University of Strathclyde, a leading technological university.

Explore

Particle-gas turbulence interactions in a kinetic theory approach to granular flows

Zhang, Y.L. and Reese, J.M. (2001) Particle-gas turbulence interactions in a kinetic theory approach to granular flows. International Journal of Multiphase Flow, 27 (11). pp. 1945-1964. ISSN 0301-9322

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

We describe a new two-fluid model for gas-solid flows that incorporates the gas turbulence influence on the random motion of the particles via a generalised kinetic theory, as well as a new gas turbulence modulation model. Simulation results for fully developed steady vertical pipe flows are in good quantitative agreement with experimental measurements. Our results show that the influence of gas turbulence on the particle microscopic flow behaviour cannot be ignored for relatively dilute flows, especially with smaller particles. Our new turbulent model captures the essential characteristics of gas turbulence modulation in the presence of particles, and can be solved for a wide range of particle-particle restitution coefficients.