Transient free convection heat transfer in a section-triangular prismatic enclosure with different aspect ratios

Cui, H; Xu, F; Saha, SC; Liu, Q

Transient free convection heat transfer in a section-triangular prismatic enclosure with different aspect ratios

Cui, H Xu, F Saha, SC

Liu, Q

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Publication Type:: Journal Article
Citation:: International Journal of Thermal Sciences, 2019, 139 pp. 282 - 291
Issue Date:: 2019-05-01

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Field	Value	Language
dc.contributor.author	Cui, H	en_US
dc.contributor.author	Xu, F	en_US
dc.contributor.author	Saha, SC https://orcid.org/0000-0002-9962-8919	en_US
dc.contributor.author	Liu, Q	en_US
dc.date.accessioned	2020-03-18T04:20:37Z
dc.date.available	2020-03-18T04:20:37Z
dc.date.issued	2019-05-01	en_US
dc.identifier.citation	International Journal of Thermal Sciences, 2019, 139 pp. 282 - 291	en_US
dc.identifier.issn	1290-0729	en_US
dc.identifier.uri	http://hdl.handle.net/10453/139386
dc.description.abstract	© 2019 Elsevier Masson SAS Free convection studies in a section-triangular prismatic enclosure with different aspect ratios (depth-width ratios, A) is conducted using three-dimensional numerical modeling approach. The Rayleigh number (Ra) covers a broad range from 10 0 to 10 7 . Transient free convection is characterized under top cooled and bottom heated boundary conditions. The flow structure of transverse rolls and longitudinal rolls is described. The critical Rayleigh numbers for the transition of the flow from driven by the baroclinic to Rayleigh-Bénard instability and from a steady to an unsteady state have been obtained for different aspect ratios. Free convection in the section-triangular prismatic enclosure could be divided into three regimes, which are presented in a Ra-A space. The quantitative relationship between heat transfer and the aspect ratio as well as the Rayleigh number has been obtained numerically.	en_US
dc.relation.ispartof	International Journal of Thermal Sciences	en_US
dc.relation.isbasedon	10.1016/j.ijthermalsci.2019.02.023	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Mechanical Engineering & Transports	en_US
dc.title	Transient free convection heat transfer in a section-triangular prismatic enclosure with different aspect ratios	en_US
dc.type	Journal Article
utslib.citation.volume	139	en_US
utslib.for	0102 Applied Mathematics	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	0915 Interdisciplinary 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	139	en_US

Abstract:

© 2019 Elsevier Masson SAS Free convection studies in a section-triangular prismatic enclosure with different aspect ratios (depth-width ratios, A) is conducted using three-dimensional numerical modeling approach. The Rayleigh number (Ra) covers a broad range from 10 0 to 10 7 . Transient free convection is characterized under top cooled and bottom heated boundary conditions. The flow structure of transverse rolls and longitudinal rolls is described. The critical Rayleigh numbers for the transition of the flow from driven by the baroclinic to Rayleigh-Bénard instability and from a steady to an unsteady state have been obtained for different aspect ratios. Free convection in the section-triangular prismatic enclosure could be divided into three regimes, which are presented in a Ra-A space. The quantitative relationship between heat transfer and the aspect ratio as well as the Rayleigh number has been obtained numerically.

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http://hdl.handle.net/10453/139386