Large-eddy simulation of  ow and combustion dynamics in a lean partially premixed swirling combustor

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/84425

dc.contributor	Barcelona Supercomputing Center
dc.contributor.author	Li, Shaoshuai
dc.contributor.author	Zheng, Yunzhe
dc.contributor.author	Zhu, Min
dc.contributor.author	Mira, Daniel
dc.contributor.author	Jiang, Xi
dc.date	2015-11-06
dc.identifier.citation	Li, Shaoshuai [et al.]. Large-eddy simulation of ow and combustion dynamics in a lean partially premixed swirling combustor. "Journal of the Energy Institute", 06 Novembre 2015.
dc.identifier.citation	1743-9671
dc.identifier.citation	10.1016/j.joei.2015.09.004
dc.identifier.uri	http://hdl.handle.net/2117/84425
dc.language.iso	eng
dc.publisher	Elsevier
dc.relation	http://www.sciencedirect.com/science/article/pii/S1743967115302877
dc.rights	Attribution-NonCommercial-NoDerivs 4.0 International License
dc.rights	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria electrònica
dc.subject	Combustion
dc.subject	LES
dc.subject	Lean partially premixed
dc.subject	Swirling flows
dc.subject	Combustion dynamics
dc.subject	NOx
dc.subject	Combustió--Models matemàtics
dc.title	Large-eddy simulation of ow and combustion dynamics in a lean partially premixed swirling combustor
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	A lean partially premixed swirling combustor was studied by resolving the complete flow path from the swirl vanes to the chamber outlet with large-eddy simulation (LES). The flow and combustion dynamics for non-reacting and reacting situations was analysed, where the intrinsic effects of swirl vanes and counter flows on the vortex formation, vorticity distribution for non-reacting cases were examined. A modified flame index was introduced to identify the flame regime during the partially premixed combustion. The combustion instability phenomenon was examined by applying Fourier spectra analysis. Several scalar variables were monitored to investigate the combustion dynamics at different operating conditions. The effects of swirl number, equivalence ratio and nitrogen dilution on combustion dynamics and NOx emissions were found to be significant.
dc.description.abstract	This work is supported by the UK EPSRC through Grant EP/K036750/1 and the National Natural Science Foundation of China through Grant No. 51376107. The computation is supported by the Tsinghua National Laboratory for Information Science and Technology
dc.description.abstract	Peer Reviewed

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