Simulating hydrodynamics of hot and large Group A particle systems at cold conditions to obtain data for scale-up--颗粒学报PARTICUOLOGY

Knowlton, T. M. (2010). Simulating hydrodynamics of hot and large Group A particle systems at cold conditions to obtain data for scale-up. Particuology, 8(6), 501-502. https://doi.org/10.1016/j.partic.2010.09.005

Simulating hydrodynamics of hot and large Group A particle systems at cold conditions to obtain data for scale-up

Ted M. Knowlton^*

Particulate Solid Research, Inc., 4201 W. 36th Street, Chicago, IL, USA

10.1016/j.partic.2010.09.005

Volume 8, Issue 6, December 2010, Pages 501-502

Received 26 May 2010, Accepted 20 June 2010, Available online 2 November 2010.

E-mail: ted.knowlton@psrichicago.com

Highlights

Abstract

Scaling laws based on the concept of dimensional similitude are proposed to simulate the hydrodynamics of hot and large particle systems at conditions of cold and small particle systems. This technique uses the concept of dimensional similitude to accomplish this by maintaining certain dimensional groups constant in the large, hot and small, cold systems. However, there are certain limitations with this technique. One of them is that the particle size in the small, cold system is usually smaller than in the large, hot system. Because particle size is such a dominant parameter in fluidized systems, this can certainly affect the simulation.

An alternative method of simulating hot hydrodynamics in ambient-temperature Group A particle systems has been proposed. In this method, the same calculated drag force is maintained between the two systems. The drag force is varied by changing the gas density of the cold system so that it matches the drag force in the hot system.

Graphical abstract

Keywords

Drag; Drag force; Simulation; Modeling

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