Flows and heat transfer of the transition to an unsteady state in a finned cavity for different Prandtl numbers

Ma, J; Xu, F; Saha, SC

Flows and heat transfer of the transition to an unsteady state in a finned cavity for different Prandtl numbers

Ma, J Xu, F Saha, SC

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Publication Type:: Journal Article
Citation:: International Communications in Heat and Mass Transfer, 2017, 88 pp. 220 - 227
Issue Date:: 2017-11-01

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Field	Value	Language
dc.contributor.author	Ma, J	en_US
dc.contributor.author	Xu, F	en_US
dc.contributor.author	Saha, SC https://orcid.org/0000-0002-9962-8919	en_US
dc.date.issued	2017-11-01	en_US
dc.identifier.citation	International Communications in Heat and Mass Transfer, 2017, 88 pp. 220 - 227	en_US
dc.identifier.issn	0735-1933	en_US
dc.identifier.uri	http://hdl.handle.net/10453/123927
dc.description.abstract	© 2017 Elsevier Ltd Flows and heat transfer of the transition to an unsteady state in a finned cavity are studied for Prandtl numbers (Pr) from 0.1 to 100 and Rayleigh numbers (Ra) from 107 to 1010. Transient flows are described in the finned cavity. Critical Rayleigh numbers of the transition to an unsteady state are obtained for different Prandtl numbers and the relation between two dimensionless parameters is given. The spectral analysis is applied for the oscillations of unsteady flows and the dominant frequency dependent on governing parameters is presented. Heat transfer of the transition to an unsteady flow is quantified and the corresponding relations dependent on the Prandtl number and Rayleigh number are gained. It is demonstrated that the flow rate and the Nusselt number of the finned cavity significantly increase due to the presentence of the fin, which depend on the Prandtl number and the Rayleigh number.	en_US
dc.relation.ispartof	International Communications in Heat and Mass Transfer	en_US
dc.relation.isbasedon	10.1016/j.icheatmasstransfer.2017.09.012	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Mechanical Engineering & Transports	en_US
dc.title	Flows and heat transfer of the transition to an unsteady state in a finned cavity for different Prandtl numbers	en_US
dc.type	Journal Article
utslib.citation.volume	88	en_US
utslib.for	0913 Mechanical Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	88	en_US

Abstract:

© 2017 Elsevier Ltd Flows and heat transfer of the transition to an unsteady state in a finned cavity are studied for Prandtl numbers (Pr) from 0.1 to 100 and Rayleigh numbers (Ra) from 107 to 1010. Transient flows are described in the finned cavity. Critical Rayleigh numbers of the transition to an unsteady state are obtained for different Prandtl numbers and the relation between two dimensionless parameters is given. The spectral analysis is applied for the oscillations of unsteady flows and the dominant frequency dependent on governing parameters is presented. Heat transfer of the transition to an unsteady flow is quantified and the corresponding relations dependent on the Prandtl number and Rayleigh number are gained. It is demonstrated that the flow rate and the Nusselt number of the finned cavity significantly increase due to the presentence of the fin, which depend on the Prandtl number and the Rayleigh number.

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http://hdl.handle.net/10453/123927