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Highly-resolved large eddy simulation of the nonreacting flow in an asymmetric vortex combustor

Saqr, Khalid M. and Abdul Wahid, Mazlan and Mohd. Sies, Mohsin (2012) Highly-resolved large eddy simulation of the nonreacting flow in an asymmetric vortex combustor. In: 4Th International Meeting of Advances in Thermofluids (Imat 2011), Pt 1 and 2. American Institute of Physics, Maryland, New York, pp. 400-408. ISBN 978-073541032-9

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Official URL: http://dx.doi.org/10.1063/1.4704242

Abstract

In this paper, we present a computational investigation of the nonreacting flow structure inside a novel asymmetric vortex combustor that was recently proposed by the authors. Large Eddy Simulation using the Smagorinsky-Lilly subgrid turbulence closure has been used to study such flow. A computational grid of 2.22×106 cells was used to ensure that the resolved turbulence kinetic energy is fairly more than 80% of the total turbulence kinetic energy budget. The flow was found to exhibit a central recirculation zone, and two secondary recirculation zones in the asymmetry regions. The vortex structure was found to be a completely forced vortex field. The effect of turbulence on the size and structure of the statistically averaged mean flow phenomena has been analyzed as discussed.

Item Type:Book Section
Additional Information:Indexed by Scopus
Uncontrolled Keywords:combustion, flame aerodynamics, large eddy simulation, vortex
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:35799
Deposited By:INVALID USER
Deposited On:11 Nov 2013 09:51
Last Modified:04 Feb 2017 06:12

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