A modified simple integral model for plume behavior from finite length line sources of heat and momentum is presented that identifies observed trends in plume trajectory data. Experiments on several finite length line sources of heat and momentum in the form of elevated (rows of stacks) and surface (slot) releases were conducted in a water tunnel. Plume behavior was documented through detailed temperature measurements of the plume cross section and by photographing the dyed plume. Results indicate the nature of any plume trajectory and growth enhancement and confirm the empirical relation for the liftoff distance for a buoyant surface plume given by Meroney (1979). In addition to the liftoff distance, the shape of the plume contact zone was measured and related to various regions of plume trajectory and cross-sectional shape. Plume trajectories from elevated line releases are adequately predicted by standard single source formulations; however, plume cross-sectional area is significantly overpredicted
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The Characteristic Behavior of Finite Length Line Sources of Heat in a Crossflow
P. R. Slawson,
P. R. Slawson
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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G. J. Hitchman,
G. J. Hitchman
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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L. E. Hawker
L. E. Hawker
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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P. R. Slawson
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
G. J. Hitchman
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
L. E. Hawker
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
J. Heat Transfer. May 1990, 112(2): 349-355 (7 pages)
Published Online: May 1, 1990
Article history
Received:
November 3, 1988
Revised:
July 7, 1989
Online:
May 23, 2008
Citation
Slawson, P. R., Hitchman, G. J., and Hawker, L. E. (May 1, 1990). "The Characteristic Behavior of Finite Length Line Sources of Heat in a Crossflow." ASME. J. Heat Transfer. May 1990; 112(2): 349–355. https://doi.org/10.1115/1.2910384
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