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An economical method for direct numerical simulation studies of transitional round jets

Mathew, Joseph and Basu, Amit J (2001) An economical method for direct numerical simulation studies of transitional round jets. In: Computers & Fluids, 30 (5). pp. 543-554.

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Official URL: http://dx.doi.org/10.1016/S0045-7930(01)00005-6

Abstract

A pseudo-spectral method based on Fourier expansions in a Cartesian coordinate system is shown to be an economical method for direct numerical simulation studies of transitional round jets, Several characteristics of the solutions are presented to establish the validity of the solutions in spite of the unnatural choices. We show that neither periodicity, nor the use of a Cartesian system have adversely affected the simulations, Instead, there are benefits in terms of ease of computing and lack of the usual restrictions due to grid structure near the jet axis. By computing the simultaneous evolution of passive scalers, the process of reaction in round jet burners, between a fuel-laden jet and an ambient oxidizer, was also simulated. Some typical solutions are shown and then the results of analysis of these data are summarized. (C) 2001 Elsevier Science Ltd, All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 02 Aug 2011 08:53
Last Modified: 02 Aug 2011 08:53
URI: http://eprints.iisc.ernet.in/id/eprint/39498

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