Transient natural convection flow dynamics in a asymmetrically heated vertical channel

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dc.contributor.author Polidori, G.
dc.contributor.author Fatnassi, S.
dc.contributor.author Maad, R. Ben
dc.contributor.author Beaumont, F.
dc.contributor.author Fohanno, S.
dc.date.accessioned 2015-04-24T08:18:05Z
dc.date.available 2015-04-24T08:18:05Z
dc.date.issued 2014
dc.description.abstract Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014. en_ZA
dc.description.abstract An experimental study in an open-ended vertical channel is carried out in order to describe the fluid dynamics during the early stage regime of free convection inside a vertical channel asymmetrically heated at uniform heat flux. The flow dynamics were characterized both by means of flow visualization techniques based on laser tomography and by velocity field measurements in the plane of symmetry of the channel using 2D-PIV (Particle Image Velocimetry) technique. The analysis allowed to detect a complex topological behaviour in the internal flow leading to numerous instabilities whose topological features are described. Vortex formation and shedding, vortex splitting, separation and beating of the boundary layer from one wall to another are identified, leading to an imbalance in the outlet pressure field which is certainly at the origin of a large-scale reversal flow. en_ZA
dc.description.librarian dc2015 en_ZA
dc.format.extent 8 pages en_ZA
dc.format.medium PDF en_ZA
dc.identifier.citation Polidori, G, Fatnassi, S, Maad, RB, Beaumont, F & Fohanno, S 2014, 'Transient natural convection flow dynamics in a asymmetrically heated vertical channel', Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014. en_ZA
dc.identifier.isbn 97817759206873
dc.identifier.uri http://hdl.handle.net/2263/44762
dc.publisher International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics en_ZA
dc.rights © 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. en_ZA
dc.subject Open-ended vertical channel en_ZA
dc.subject Fluid dynamics en_ZA
dc.subject Free convection en_ZA
dc.subject Vertical channel asymmetrically heated en_ZA
dc.subject Flow dynamics en_ZA
dc.subject Flow visualization techniques en_ZA
dc.subject Laser tomography en_ZA
dc.subject Velocity field en_ZA
dc.subject Particle Image Velocimetry en_ZA
dc.title Transient natural convection flow dynamics in a asymmetrically heated vertical channel en_ZA
dc.type Presentation en_ZA


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