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- Publisher Website: 10.1080/14733315.2011.11683931
- Scopus: eid_2-s2.0-79957946018
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Article: Revisiting internal pressure dynamics in a single opening enclosure ventilated by wind
Title | Revisiting internal pressure dynamics in a single opening enclosure ventilated by wind |
---|---|
Authors | |
Keywords | Internal Pressure Natural Ventilation Periodic Motion Resonance Seminonlinear Analysis Single Opening Wind |
Issue Date | 2011 |
Publisher | VEETECH 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 Identifier | http://hdl.handle.net/10722/157120 |
ISSN | 2023 Impact Factor: 1.1 2023 SCImago Journal Rankings: 0.399 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Xu, P | en_US |
dc.contributor.author | Li, Y | en_US |
dc.date.accessioned | 2012-08-08T08:45:25Z | - |
dc.date.available | 2012-08-08T08:45:25Z | - |
dc.date.issued | 2011 | en_US |
dc.identifier.citation | International Journal Of Ventilation, 2011, v. 10 n. 1, p. 1-18 | en_US |
dc.identifier.issn | 1473-3315 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/157120 | - |
dc.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 "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.language | eng | en_US |
dc.publisher | VEETECH Ltd. The Journal's web site is located at http://www.ijovent.org/ | en_US |
dc.relation.ispartof | International Journal of Ventilation | en_US |
dc.subject | Internal Pressure | en_US |
dc.subject | Natural Ventilation | en_US |
dc.subject | Periodic Motion | en_US |
dc.subject | Resonance | en_US |
dc.subject | Seminonlinear Analysis | en_US |
dc.subject | Single Opening | en_US |
dc.subject | Wind | en_US |
dc.title | Revisiting internal pressure dynamics in a single opening enclosure ventilated by wind | en_US |
dc.type | Article | en_US |
dc.identifier.email | Li, Y:liyg@hkucc.hku.hk | en_US |
dc.identifier.authority | Li, Y=rp00151 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1080/14733315.2011.11683931 | - |
dc.identifier.scopus | eid_2-s2.0-79957946018 | en_US |
dc.identifier.hkuros | 209918 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-79957946018&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 10 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.spage | 1 | en_US |
dc.identifier.epage | 18 | en_US |
dc.identifier.isi | WOS:000290880700001 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Xu, P=8440784800 | en_US |
dc.identifier.scopusauthorid | Li, Y=7502094052 | en_US |
dc.identifier.issnl | 1473-3315 | - |