Low-order discrete dynamical system for H2-air finite-rate chemistry in 3D

dc.contributor.authorZeng, W
dc.contributor.authorFu, R
dc.contributor.authorMcDonough, JM
dc.date.accessioned2015-04-23T11:51:14Z
dc.date.available2015-04-23T11:51:14Z
dc.date.issued2014
dc.description.abstractPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.en_ZA
dc.description.abstractA low-order discrete dynamical system (DDS) model for finite-rate chemistry of H2-air combustion is derived in 3D. Simulation is performed in the context of a new subgrid-scale (SGS) method. Regime maps are used to determine useful ranges of values for bifurcation parameters. Specifically, a nine-step mechanism of H2-air reactions with N2-dilution is studied. As input to the DDS model, one fixed position within the flow chosen from Meier et al., is used (Combustion Science and Technology, 1996). The results in terms of time series of velocities, species mass fractions and the sum of mass fractions are analyzed. Moreover, the results are compared with experimental data at the selected position in the flame field. Discrepancies between computed and experimental results are discussed, and possible causes for discrepancies are analyzed. The potential of applying the current DDS in large-eddy simulation is addressed.en_ZA
dc.description.librariandc2015en_ZA
dc.format.extent7 pagesen_ZA
dc.format.mediumPDFen_ZA
dc.identifier.citationZeng, W, Fu, R & McDonough, JM 2014, 'Low-order discrete dynamical system for H2-air finite-rate chemistry in 3D', Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.en_ZA
dc.identifier.isbn97817759206873
dc.identifier.urihttp://hdl.handle.net/2263/44613
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_ZA
dc.rights© 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.en_ZA
dc.subjectDiscrete dynamical systemen_ZA
dc.subjectDDSen_ZA
dc.subjectFinite-rate chemistryen_ZA
dc.subjectH2-air combustionen_ZA
dc.subjectSubgrid-scaleen_ZA
dc.subjectSGSen_ZA
dc.subjectMeier et alen_ZA
dc.subjectCombustion Science and Technology, 1996en_ZA
dc.titleLow-order discrete dynamical system for H2-air finite-rate chemistry in 3Den_ZA
dc.typePresentationen_ZA

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