Interaction mechanism model for a nonisothermal air jet and a buoyant plume

If high-power machines are used and a large number of people are present, a significant amount of heat will be generated, which forms an upward thermal plume. The interaction problem occurs when the cold jet and the thermal plume meet. This article presents the interaction mechanism between a moment...

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Bibliographic Details
Published in:Advances in mechanical engineering 2017-06, Vol.9 (6), p.168781401770280
Main Authors: Wang, Xin, Shen, Shuren, Du, Guangyao, Dai, Yuntian
Format: Article
Language:English
Subjects:
Air conditioning
Air jets
Buoyancy
Cold
Flow velocity
Heat transfer
Interaction parameters
Plumes
Product design
Stress analysis
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Summary:If high-power machines are used and a large number of people are present, a significant amount of heat will be generated, which forms an upward thermal plume. The interaction problem occurs when the cold jet and the thermal plume meet. This article presents the interaction mechanism between a momentum source and a buoyancy source and deduces the interaction parameter β to investigate the effects of parameters such as the power of the source, the air-supply velocity, plume spacing, and nozzle spacing height. Experiments were carried out to investigate the flow field of the air jet affected by the plume and to validate the theoretical work.
ISSN:1687-8132
1687-8140
1687-8140
DOI:10.1177/1687814017702805