File Download
  • No File Attached
 
Links for fulltext
(May Require Subscription)
 
Supplementary

Article: Revisiting internal pressure dynamics in a single opening enclosure ventilated by wind
  • Basic View
  • Metadata View
  • XML View
TitleRevisiting internal pressure dynamics in a single opening enclosure ventilated by wind
 
AuthorsXu, P2 1
Li, Y2
 
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/
 
CitationInternational Journal Of Ventilation, 2011, v. 10 n. 1, p. 1-18 [How to Cite?]
 
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.
 
ISSN1473-3315
2013 Impact Factor: 0.303
2013 SCImago Journal Rankings: 0.225
 
ISI Accession Number IDWOS:000290880700001
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorXu, P
 
dc.contributor.authorLi, Y
 
dc.date.accessioned2012-08-08T08:45:25Z
 
dc.date.available2012-08-08T08:45:25Z
 
dc.date.issued2011
 
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.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationInternational Journal Of Ventilation, 2011, v. 10 n. 1, p. 1-18 [How to Cite?]
 
dc.identifier.epage18
 
dc.identifier.hkuros209918
 
dc.identifier.isiWOS:000290880700001
 
dc.identifier.issn1473-3315
2013 Impact Factor: 0.303
2013 SCImago Journal Rankings: 0.225
 
dc.identifier.issue1
 
dc.identifier.scopuseid_2-s2.0-79957946018
 
dc.identifier.spage1
 
dc.identifier.urihttp://hdl.handle.net/10722/157120
 
dc.identifier.volume10
 
dc.languageeng
 
dc.publisherVEETECH Ltd. The Journal's web site is located at http://www.ijovent.org/
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofInternational Journal of Ventilation
 
dc.relation.referencesReferences in Scopus
 
dc.subjectInternal Pressure
 
dc.subjectNatural Ventilation
 
dc.subjectPeriodic Motion
 
dc.subjectResonance
 
dc.subjectSeminonlinear Analysis
 
dc.subjectSingle Opening
 
dc.subjectWind
 
dc.titleRevisiting internal pressure dynamics in a single opening enclosure ventilated by wind
 
dc.typeArticle
 
<?xml encoding="utf-8" version="1.0"?>
<item><contributor.author>Xu, P</contributor.author>
<contributor.author>Li, Y</contributor.author>
<date.accessioned>2012-08-08T08:45:25Z</date.accessioned>
<date.available>2012-08-08T08:45:25Z</date.available>
<date.issued>2011</date.issued>
<identifier.citation>International Journal Of Ventilation, 2011, v. 10 n. 1, p. 1-18</identifier.citation>
<identifier.issn>1473-3315</identifier.issn>
<identifier.uri>http://hdl.handle.net/10722/157120</identifier.uri>
<description.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 &quot;accurate&quot; 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.</description.abstract>
<language>eng</language>
<publisher>VEETECH Ltd. The Journal&apos;s web site is located at http://www.ijovent.org/</publisher>
<relation.ispartof>International Journal of Ventilation</relation.ispartof>
<subject>Internal Pressure</subject>
<subject>Natural Ventilation</subject>
<subject>Periodic Motion</subject>
<subject>Resonance</subject>
<subject>Seminonlinear Analysis</subject>
<subject>Single Opening</subject>
<subject>Wind</subject>
<title>Revisiting internal pressure dynamics in a single opening enclosure ventilated by wind</title>
<type>Article</type>
<description.nature>link_to_subscribed_fulltext</description.nature>
<identifier.scopus>eid_2-s2.0-79957946018</identifier.scopus>
<identifier.hkuros>209918</identifier.hkuros>
<relation.references>http://www.scopus.com/mlt/select.url?eid=2-s2.0-79957946018&amp;selection=ref&amp;src=s&amp;origin=recordpage</relation.references>
<identifier.volume>10</identifier.volume>
<identifier.issue>1</identifier.issue>
<identifier.spage>1</identifier.spage>
<identifier.epage>18</identifier.epage>
<identifier.isi>WOS:000290880700001</identifier.isi>
<publisher.place>United Kingdom</publisher.place>
</item>
Author Affiliations
  1. Academy of Mathematics and System Sciences Chinese Academy of Sciences
  2. The University of Hong Kong