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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12397
Title: Study of buoyant jets in natural ventilation of a model room
Authors: Subudhi, Sudhakar
Sreenivas K.R.
Arakeri J.H.
Published in: International Journal of Heat and Mass Transfer
Abstract: Buoyant jets in natural ventilation of a model room with water as the fluid medium have been studied. A constant heat flux has been maintained on the bottom surface of the room. The buoyancy causes flow to enter through the bottom opening and leave through the top opening. The shadowgraph technique is used for visualization. At the inlet, a negatively buoyant jet is observed, whereas a positively buoyant jet is observed at the outlet. The theoretical results for the centerline trajectories of these buoyant jets using both Gaussian and top-hat profiles are discussed considering the variation of the entrainment coefficient with the local Froude number and the variation of the spreading ratio of buoyancy to velocity profile with the distance from the source. The shape of the profiles is found to evolve from top-hat to Gaussian geometry. © 2013 Elsevier Ltd. All rights reserved.
Citation: International Journal of Heat and Mass Transfer (2013), 64(): 91-97
URI: https://doi.org/10.1016/j.ijheatmasstransfer.2013.04.027
http://repository.iitr.ac.in/handle/123456789/12397
Issue Date: 2013
Keywords: Gaussian profile
Natural ventilation
Negatively buoyant jet
Positively buoyant jet
Top-hat profile
ISSN: 179310
Author Scopus IDs: 54407504100
57198395297
35581295800
Author Affiliations: Subudhi, S., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, India
Sreenivas, K.R., Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India
Arakeri, J.H., Department of Mechanical Engineering, Indian Institute of Science, Bangalore, India
Corresponding Author: Subudhi, S.; Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, India; email: subudfme@iitr.ernet.in
Appears in Collections:Journal Publications [ME]

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