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

dc.contributor.authorAmeur, D.
dc.contributor.authorRaspo, I.
dc.date.accessioned2015-04-24T11:20:19Z
dc.date.available2015-04-24T11:20:19Z
dc.date.issued2012
dc.description.abstractPaper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.en_ZA
dc.description.abstractThe 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.librariandc2014en_ZA
dc.format.extent8 pagesen_ZA
dc.format.mediumPDFen_ZA
dc.identifier.citationAmeur, 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.isbn9781868549863
dc.identifier.urihttp://hdl.handle.net/2263/44834
dc.language.isoenen_ZA
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_ZA
dc.relation.ispartofHEFAT 2012en_US
dc.rightsUniversity of Pretoriaen_ZA
dc.subjectPoiseuille-Rayleigh-Bénarden_ZA
dc.subjectPRBen_ZA
dc.subjectThermoconvective structuresen_ZA
dc.subjectIncompressible flowsen_ZA
dc.subjectPerfect gasen_ZA
dc.subjectSupercritical fluidsen_ZA
dc.subjectSCFen_ZA
dc.subjectNavier-Stokes equationsen_ZA
dc.titleThermal instability of Poiseuille-Rayleigh-Bénard for a supercritical fluid in a mini-channelen_ZA
dc.typePresentationen_ZA

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
Ameur_Thermal_2014.pdf
Size:
701.64 KB
Format:
Adobe Portable Document Format
Description:
Presentation
Download

License bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics 2012
Simple item page