Revisiting Internal Pressure Dynamics in a Single Opening Enclosure Ventilated by Wind
文献类型：期刊论文
| 作者 | Xu, Pengcheng1,2 ; Li, Yuguo1
|
| 刊名 | INTERNATIONAL JOURNAL OF VENTILATION
 |
| 出版日期 | 2011-06-01 |
| 卷号 | 10期号:1页码:1-18 |
| 关键词 | internal pressure natural ventilation single opening periodic motion wind resonance semi-nonlinear analysis |
| ISSN号 | 1473-3315 |
| 英文摘要 | 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. |
| 资助项目 | Research Grants Council of the Hong Kong Special Administrative Region, China[HKU 714608E] ; National Natural Science Foundation of China[10971214] |
| WOS研究方向 | Construction & Building Technology ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000290880700001 |
| 出版者 | VEETECH LTD |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/11236]  |
| 专题 | 应用数学研究所 |
| 通讯作者 | Xu, Pengcheng |
| 作者单位 | 1.Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Pengcheng,Li, Yuguo. Revisiting Internal Pressure Dynamics in a Single Opening Enclosure Ventilated by Wind[J]. INTERNATIONAL JOURNAL OF VENTILATION,2011,10(1):1-18. |
| APA | Xu, Pengcheng,&Li, Yuguo.(2011).Revisiting Internal Pressure Dynamics in a Single Opening Enclosure Ventilated by Wind.INTERNATIONAL JOURNAL OF VENTILATION,10(1),1-18. |
| MLA | Xu, Pengcheng,et al."Revisiting Internal Pressure Dynamics in a Single Opening Enclosure Ventilated by Wind".INTERNATIONAL JOURNAL OF VENTILATION 10.1(2011):1-18. |
入库方式： OAI收割
来源：数学与系统科学研究院
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