On the validity of the Boussinesq approximation in a tall differentially heated cavity with water

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/13497

dc.contributor	Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.contributor	Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor
dc.contributor.author	Kizildag, Deniz
dc.contributor.author	Rodríguez Pérez, Ivette María
dc.contributor.author	Oliva Llena, Asensio
dc.date	2011
dc.identifier.citation	Kizildag, D.; Rodriguez, I.; Oliva, A. On the validity of the Boussinesq approximation in a tall differentially heated cavity with water. A: International Conference on Computational Heat and Mass Transfer. "7th International Conference on Computational Heat and Mass Transfer". Istanbul: 2011, p. 1-7.
dc.identifier.uri	http://hdl.handle.net/2117/13497
dc.language.iso	eng
dc.relation	http://icchmt.com/
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Edificació::Instal·lacions i acondicionament d'edificis::Instal·lacions de climatització
dc.subject	Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències
dc.subject	Building -- Energy simulation
dc.subject	Edificis -- Consum d'energia
dc.title	On the validity of the Boussinesq approximation in a tall differentially heated cavity with water
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	In the present work, the fluid flow and heat transfer inside an integrated solar collector installed on an advanced fac¸ade are investigated. According to Gray and Giorgini [1], the use of the Boussinesq approximation can be considered valid for variations of thermosphysical properties up to 10 % with respect to the mean value. In the configuration under study, there is a variation of about 20 % in the dynamic viscosity and 15 % in the thermal expansion coefficient. Thus, the main objective of this work is to analyse the validity of the Boussinesq approximation for the turbulent natural convection flow of water in a rectangular parallelepiped tank. The significance of the Boussinesq effects is studied comparatively by means of detailed DNS simulations.
dc.description.abstract	Peer Reviewed

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