Ventilation flow through a room fitted with a windcatcher using a LES CFD technique

Niktash, AR; Huynh, BP

Ventilation flow through a room fitted with a windcatcher using a LES CFD technique

Niktash, AR Huynh, BP

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Publisher:: Springer
Publication Type:: Chapter
Citation:: Transactions on Engineering Technologies - World Congress on Engineering 2014, 2015, pp. 213 - 222 (10)
Issue Date:: 2015-01-01

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Field	Value	Language
dc.contributor.author	Niktash, AR	en_US
dc.contributor.author	Huynh, BP	en_US
dc.contributor.editor	Yang, G-C	en_US
dc.contributor.editor	Ao, S-I	en_US
dc.contributor.editor	Gelman, L	en_US
dc.date.issued	2015-01-01	en_US
dc.identifier.citation	Transactions on Engineering Technologies - World Congress on Engineering 2014, 2015, pp. 213 - 222 (10)	en_US
dc.identifier.isbn	978-94-017-9803-7	en_US
dc.identifier.uri	http://hdl.handle.net/10453/81308
dc.description.abstract	In this study, air ﬂow through a three-dimensional room ﬁtted with a two-sided windcatcher is observed numerically, using a commercial computational ﬂuid dynamics (CFD) software package. A LES (Large Eddy Simulation) method is used and the results are compared with those obtained previously by using a RANS (Reynolds Averaged Navier-Stokes) technique. Since LES is generally considered as more accurate but requiring more computational efforts than RANS, the results obtained in this work would verify the RANS results which have covered many more cases in addition to the one considered in this work. The LES and RANS results for the windcatcher conﬁguration considered in this work are in good agreement. Speciﬁcally, it is conﬁrmed that the two-canal centred position windcatcher with the bottom length of 10 cm provides full circulation for most part of the room and a large region of stable velocity in the acceptable range of indoor air speed for human comfort.	en_US
dc.publisher	Springer	en_US
dc.relation.ispartof	Transactions on Engineering Technologies - World Congress on Engineering 2014	en_US
dc.relation.isbasedon	10.1007/978-94-017-9804-4	en_US
dc.relation.isreplacedby	10453/120012
dc.relation.isreplacedby	http://hdl.handle.net/10453/120012
dc.title	Ventilation flow through a room fitted with a windcatcher using a LES CFD technique	en_US
dc.type	Chapter
utslib.location	Dordrecht	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	1099 Other Technology	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.declined	2017-02-20T20:47:55.976+1100
pubs.consider-herdc	true	en_US
pubs.merge-to	10453/120012
pubs.merge-to	http://hdl.handle.net/10453/120012
pubs.deleted	2017-02-20T20:47:55.976+1100
pubs.place-of-publication	Dordrecht	en_US
pubs.publication-status	Published	en_US

Abstract:

In this study, air ﬂow through a three-dimensional room ﬁtted with a two-sided windcatcher is observed numerically, using a commercial computational ﬂuid dynamics (CFD) software package. A LES (Large Eddy Simulation) method is used and the results are compared with those obtained previously by using a RANS (Reynolds Averaged Navier-Stokes) technique. Since LES is generally considered as more accurate but requiring more computational efforts than RANS, the results obtained in this work would verify the RANS results which have covered many more cases in addition to the one considered in this work. The LES and RANS results for the windcatcher conﬁguration considered in this work are in good agreement. Speciﬁcally, it is conﬁrmed that the two-canal centred position windcatcher with the bottom length of 10 cm provides full circulation for most part of the room and a large region of stable velocity in the acceptable range of indoor air speed for human comfort.

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http://hdl.handle.net/10453/81308