Thermal instability of Poiseuille-Rayleigh-Bénard for a supercritical fluid in a mini-channel

Ameur, D.; Raspo, I.

dc.contributor.author	Ameur, D.
dc.contributor.author	Raspo, I.
dc.date.accessioned	2015-04-24T11:20:19Z
dc.date.available	2015-04-24T11:20:19Z
dc.date.issued	2012
dc.description.abstract	Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.	en_ZA
dc.description.abstract	The Poiseuille-Rayleigh-Bénard (PRB) problem, involving the onset of thermoconvective structures in channels heated from below, was the subject of many theoretical, numerical and experimental studies for incompressible flows or perfect gas. However, to the authors’ knowledge, this problem was never studied for supercritical fluids (SCF). The objective of this paper is to study the influence of the specific properties of SCF on thermoconvective instability phenomena compared with those observed in the perfect gas case. The effect of the distance to the critical point is also investigated. The numerical approach used is based on the Navier-Stokes equations in the framework of the low Mach number approximation.	en_ZA
dc.description.librarian	dc2014	en_ZA
dc.format.extent	8 pages	en_ZA
dc.format.medium	PDF	en_ZA
dc.identifier.citation	Ameur, D & Raspo, I 2012, Thermal instability of Poiseuille-Rayleigh-Bénard for a supercritical fluid in a mini-channel, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.	en_ZA
dc.identifier.isbn	9781868549863
dc.identifier.uri	http://hdl.handle.net/2263/44834
dc.language.iso	en	en_ZA
dc.publisher	International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics	en_ZA
dc.relation.ispartof	HEFAT 2012	en_US
dc.rights	University of Pretoria	en_ZA
dc.subject	Poiseuille-Rayleigh-Bénard	en_ZA
dc.subject	PRB	en_ZA
dc.subject	Thermoconvective structures	en_ZA
dc.subject	Incompressible flows	en_ZA
dc.subject	Perfect gas	en_ZA
dc.subject	Supercritical fluids	en_ZA
dc.subject	SCF	en_ZA
dc.subject	Navier-Stokes equations	en_ZA
dc.title	Thermal instability of Poiseuille-Rayleigh-Bénard for a supercritical fluid in a mini-channel	en_ZA
dc.type	Presentation	en_ZA