Theoretical and experimental investigation of wall confluent jet ventilation and comparison with wall displacement ventilation

Cho, Youngjun, Awbi, H. and Karimipanah, T. 2008. Theoretical and experimental investigation of wall confluent jet ventilation and comparison with wall displacement ventilation. Building and Environment 43 (6) , pp. 1091-1100. 10.1016/j.buildenv.2007.02.006

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Abstract

This paper reports CFD and experimental results of the characteristics of wall confluent jets in a room. The results presented show the behaviour of wall confluent jets in the form of velocity profiles, the spreading rate of jets on the surface, jets decay, etc. The empirical equations derived are compared with other types of air jets. In addition, the flow in wall confluent jets is compared with the flow in displacement ventilation supply, with regards to the vertical and horizontal spreading on the floor. It is concluded that the jet momentum of wall confluent jets can be more conserved than other jets. Thus, wall confluent jets have a greater spread over the floor than displacement flow.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Architecture
Subjects:	T Technology > TH Building construction
Uncontrolled Keywords:	Wall confluent jets ventilation ; Displacement ventilation ; Jet velocity profiles ; Jet spreading rate
Last Modified:	31 Jul 2020 01:30
URI:	https://orca.cardiff.ac.uk/id/eprint/14792

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