THE INFLUENCE OF TURBULENT WIND ON AIR CHANGE RATES - A MODELING APPROACH

被引：74

作者：

HAGHIGHAT, F

RAO, J

FAZIO, P

机构：

[1] Centre for building Studies, Concordia University, Montreal

来源：

BUILDING AND ENVIRONMENT | 1991年 / 26卷 / 02期

关键词：

D O I：

10.1016/0360-1323(91)90017-6

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Turbulence in wind-induced pressures on a building envelope causes fluctuating air infiltration. The resultant airflows are influenced both by building characteristics, the resistance of the openings to flow, the inertia of the air mass in the openings and the compressibility of room air, and by frequency characteristics of wind pressures, their power spectra and the correlation among them. A new approach using the spectrum analysis technique is proposed to model the pulsating flows through openings of a building. The governing equations for fluctuating airflow behaviour are obtained from the pressure/force balance between the turbulence pressure difference across openings and the forces required to overcome the flow resistance and inertia of air. The proposed approach is applied to a single-zone enclosure with a single opening and with two openings, and can be easily extended to multi-zone buildings.

引用

页码：95 / 109

页数：15

共 26 条

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