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Article: Revisiting internal pressure dynamics in a single opening enclosure ventilated by wind

TitleRevisiting internal pressure dynamics in a single opening enclosure ventilated by wind
Authors
KeywordsInternal Pressure
Natural Ventilation
Periodic Motion
Resonance
Seminonlinear Analysis
Single Opening
Wind
Issue Date2011
PublisherVEETECH Ltd. The Journal's web site is located at http://www.ijovent.org/
Citation
International Journal Of Ventilation, 2011, v. 10 n. 1, p. 1-18 How to Cite?
Abstract
This paper describes a re-analysis of internal pressure and building ventilation in a single-opening enclosure ventilated by winds. The dynamics of internal pressure is governed by a nonlinear oscillation equation. An alternative semi-nonlinear approach is proposed for obtaining the amplitude and phase shift of the periodic motion, the resonant frequency and resonant amplitude. Our new approach reproduced two of the commonly used existing linearization results. We also obtained explicit formulas for both the amplitude and phase shift of the internal pressure, as well as the airflow velocity through the opening. Numerical "accurate" solutions of the original governing equation were also obtained to evaluate our theoretical ones. We also found a quasi-periodic motion exists in addition to the periodic motion already found in the literature, but this has not been proved in any physical experiments.
Persistent Identifierhttp://hdl.handle.net/10722/157120
ISSN
2013 Impact Factor: 0.303
2013 SCImago Journal Rankings: 0.225
ISI Accession Number ID
References

 

Author Affiliations
  1. Academy of Mathematics and System Sciences Chinese Academy of Sciences
  2. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorXu, Pen_US
dc.contributor.authorLi, Yen_US
dc.date.accessioned2012-08-08T08:45:25Z-
dc.date.available2012-08-08T08:45:25Z-
dc.date.issued2011en_US
dc.identifier.citationInternational Journal Of Ventilation, 2011, v. 10 n. 1, p. 1-18en_US
dc.identifier.issn1473-3315en_US
dc.identifier.urihttp://hdl.handle.net/10722/157120-
dc.description.abstractThis paper describes a re-analysis of internal pressure and building ventilation in a single-opening enclosure ventilated by winds. The dynamics of internal pressure is governed by a nonlinear oscillation equation. An alternative semi-nonlinear approach is proposed for obtaining the amplitude and phase shift of the periodic motion, the resonant frequency and resonant amplitude. Our new approach reproduced two of the commonly used existing linearization results. We also obtained explicit formulas for both the amplitude and phase shift of the internal pressure, as well as the airflow velocity through the opening. Numerical "accurate" solutions of the original governing equation were also obtained to evaluate our theoretical ones. We also found a quasi-periodic motion exists in addition to the periodic motion already found in the literature, but this has not been proved in any physical experiments.en_US
dc.languageengen_US
dc.publisherVEETECH Ltd. The Journal's web site is located at http://www.ijovent.org/en_US
dc.relation.ispartofInternational Journal of Ventilationen_US
dc.subjectInternal Pressureen_US
dc.subjectNatural Ventilationen_US
dc.subjectPeriodic Motionen_US
dc.subjectResonanceen_US
dc.subjectSeminonlinear Analysisen_US
dc.subjectSingle Openingen_US
dc.subjectWinden_US
dc.titleRevisiting internal pressure dynamics in a single opening enclosure ventilated by winden_US
dc.typeArticleen_US
dc.identifier.emailLi, Y:liyg@hkucc.hku.hken_US
dc.identifier.authorityLi, Y=rp00151en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-79957946018en_US
dc.identifier.hkuros209918-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79957946018&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume10en_US
dc.identifier.issue1en_US
dc.identifier.spage1en_US
dc.identifier.epage18en_US
dc.identifier.isiWOS:000290880700001-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridXu, P=8440784800en_US
dc.identifier.scopusauthoridLi, Y=7502094052en_US

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