Simulation of the Strongly Swirling Aerodynamic Field in a Vortex Combustor

[+] Author and Article Information
Sen Nieh, Jian Zhang

Department of Mechanical Engineering, The Catholic University of America, Washington, D.C. 20064

J. Fluids Eng 114(3), 367-374 (Sep 01, 1992) (8 pages) doi:10.1115/1.2910039 History: Received August 06, 1991; Online May 23, 2008


This paper presents the simulation of the strongly swirling aerodynamic field in a coal-fired vortex combustor (VC) recently developed for commercial heating applications. A new version of algebraic Reynolds stress model was employed for the closure of non-isotropic turbulence. The calculated results of the 25 cm I.D. bench-scale and the 61 cm I.D. full-scale VC cold test models showed the pertinent aerodynamic features of the VC in terms of strongly swirling, developing, recirculating, and non-isotropic turbulent flow. The dynamic similarity was generally maintained for VCs of different scales.

Copyright © 1992 by The American Society of Mechanical Engineers
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