Numerical Investigation of Effects of Two-Dimensional Thermal Plumes on Cross-Flow

Huynh, P

Numerical Investigation of Effects of Two-Dimensional Thermal Plumes on Cross-Flow

Huynh, P

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Publisher:: Engineers Australia
Publication Type:: Conference Proceeding
Citation:: CD Proceedings of the 9th National Conference on Hydraulics in Water Engineering, 2008, pp. 1 - 7
Issue Date:: 2008-01

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Field	Value	Language
dc.contributor.author	Huynh, P https://orcid.org/0000-0002-8786-8472	en_US
dc.contributor.editor	Valentine, E	en_US
dc.date	2008-09-23	en_US
dc.date.issued	2008-01	en_US
dc.identifier.citation	CD Proceedings of the 9th National Conference on Hydraulics in Water Engineering, 2008, pp. 1 - 7	en_US
dc.identifier.isbn	9780858258556	en_US
dc.identifier.uri	http://hdl.handle.net/10453/11042
dc.description.abstract	Numerical investigation of the effects of thermal plumes rising from a heated horizontal plate positioned on the floor in a cross-flow is conducted, using a commercial Computational Fluid Dynamics (CFD) software package. A two-dimensional flow configuration of fresh water is assumed, and the low-Reynoldsnumber turbulence model of Chien is used. The effects are characterised by an angle theta above the horizontal of the interface between the original cross-flow and a second, negative cross-flow that is induced from downstream of the plate. It is shown that .. correlates quite well with the cross-flow Froude number Fr, decreasing linearly with a mild slope (on a log-linear plot) with increasing Fr, when this is less than about 0.08. A sharp drop of theta follows, to reach and remain at zero, for Fr larger than about 0.1. This study thus shows that at low Fr, crossflow can not reach large regions of the flow field. The situation is reversed when Fr is larger than about 0.1; then, the cross-flow reaches virtually all parts of the flow field.	en_US
dc.publisher	Engineers Australia	en_US
dc.relation.ispartof	CD Proceedings of the 9th National Conference on Hydraulics in Water Engineering	en_US
dc.relation.ispartof	National Conference on Hydraulics in Water Engineering	en_US
dc.title	Numerical Investigation of Effects of Two-Dimensional Thermal Plumes on Cross-Flow	en_US
dc.type	Conference Proceeding
utslib.location	Darwin, Northern Territory, Australia	en_US
utslib.location.activity	Darwin, Northern Territory, Australia	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0907 Environmental Engineering	en_US
dc.location.activity	Darwin, Northern Territory, Australia	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.consider-herdc	false	en_US
pubs.place-of-publication	Darwin, Northern Territory, Australia	en_US
pubs.start-date	2008-09-23	en_US

Abstract:

Numerical investigation of the effects of thermal plumes rising from a heated horizontal plate positioned on the floor in a cross-flow is conducted, using a commercial Computational Fluid Dynamics (CFD) software package. A two-dimensional flow configuration of fresh water is assumed, and the low-Reynoldsnumber turbulence model of Chien is used. The effects are characterised by an angle theta above the horizontal of the interface between the original cross-flow and a second, negative cross-flow that is induced from downstream of the plate. It is shown that .. correlates quite well with the cross-flow Froude number Fr, decreasing linearly with a mild slope (on a log-linear plot) with increasing Fr, when this is less than about 0.08. A sharp drop of theta follows, to reach and remain at zero, for Fr larger than about 0.1. This study thus shows that at low Fr, crossflow can not reach large regions of the flow field. The situation is reversed when Fr is larger than about 0.1; then, the cross-flow reaches virtually all parts of the flow field.

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http://hdl.handle.net/10453/11042