NUMERICAL MODELING OF AIR-PRESSURE TRANSIENT PROPAGATION IN BUILDING DRAINAGE SYSTEMS, INCLUDING THE INFLUENCE OF MECHANICAL BOUNDARY-CONDITIONS

被引：23
作者：
SWAFFIELD, JA
CAMPBELL, DP
机构：
[1] Heriot-Watt University, Department of Building Engineering and Surveying, Riccarton, Edinburgh
来源：
BUILDING AND ENVIRONMENT | 1992年 / 27卷 / 04期
关键词：
D O I：
10.1016/0360-1323(92)90044-P
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Air pressure transients within building drainage systems belong to a family of unsteady flow phenomena amenable to numerical modelling via the method of characteristics. The defining equations are solved for a range of transient conditions, including trap seal retention prediction and air admittance valve stack termination. An air admittance valve boundary condition is investigated, both numerically and experimentally. The resultant boundary equation is validated and the method of characteristics model is shown to be capable of predicting the valve's operational performance. The model is shown to be capable of development as a basis for air admittance value design and acceptance criteria.
引用
收藏
页码：455 / 467
页数：13
相关论文
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Pao, Fluid Dynamics, (1969)
[2]  
Swaffield, Campbell, Air pressure transient propagation in building drainage vent systems, an application of unsteady flow analysis, Bldg Envir., 27, pp. 357-365, (1992)
[3]  
Swaffield, Galowin, Multistorey building drainage network design—an application of computer based unsteady partially filled pipeflow analysis, Bldg Envir., 24, pp. 99-110, (1989)
[4]  
Wise, Water, sanitary and waste services for buildings, (1979)
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