Natural convection in a periodically heated slot

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Title of host publicationProceedings of the 18th Australasian Fluid Mechanics Conference, AFMC 2012
PublisherAustralasian Fluid Mechanics Society
ISBN (Print)9780646583730
Publication statusPublished - 2012
Externally publishedYes

Publication series

NameProceedings of the 18th Australasian Fluid Mechanics Conference, AFMC 2012

Conference

Title18th Australasian Fluid Mechanics Conference, AFMC 2012
PlaceAustralia
CityLaunceston
Period3 - 7 December 2012

Abstract

Heat transfer resulting from the natural convection in a fluid layer contained in an infinite horizontal slot bounded by solid walls and subject to a spatially periodic heating at the lower wall has been investigated. The heating produces sinusoidal temperature variations along one horizontal direction characterized by the wave number α with the amplitude expressed in terms of a suitably defined Rayleigh number Rap. The maximum heat transfer takes place for the heating with the wave numbers α=0(1) as this leads to the most intense convection. The strength of convection decreases proportionally to α for small heating wave numbers, resulting in the heat transfer being dominated by periodic conduction with the Nusselt number decreasing proportionally to α2. When α becomes large, the convection is confined to a thin layer adjacent to the lower wall with its strength decreasing proportionally to α-3, with the temperature field above the convection layer loosing dependence on the horizontal direction.

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Natural convection in a periodically heated slot. / Hossain, M. Z.; Floryan, J. M.

Proceedings of the 18th Australasian Fluid Mechanics Conference, AFMC 2012. Australasian Fluid Mechanics Society, 2012. (Proceedings of the 18th Australasian Fluid Mechanics Conference, AFMC 2012).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review