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One-dimensional analysis of the hydrodynamic and thermal characteristics of thin film flows including the hydraulic jump and rotationThe flow of a thin liquid film with a free surface along a horizontal plane that emanates from a pressurized vessel is examined numerically. In one g, a hydraulic jump was predicted in both plane and radial flow, which could be forced away from the inlet by increasing the inlet Froude number or Reynolds number. In zero g, the hydraulic jump was not predicted. The effect of solid-body rotation for radial flow in one g was to 'wash out' the hydraulic jump and to decrease the film height on the disk. The liquid film heights under one g and zero g were equal under solid-body rotation because the effect of centrifugal force was much greater than that of the gravitational force. The heat transfer to a film on a rotating disk was predicted to be greater than that of a stationary disk because the liquid film is extremely thin and is moving with a very high velocity.
Document ID
19900061351
Document Type
Reprint (Version printed in journal)
Authors
Thomas, S. (Wright State Univ. Dayton, OH, United States)
Hankey, W. (Wright State Univ. Dayton, OH, United States)
Faghri, A. (Wright State University Dayton, OH, United States)
Swanson, T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1990
Publication Information
Publication: ASME, Transactions, Journal of Heat Transfer
Volume: 112
ISSN: 0022-1481
Subject Category
FLUID MECHANICS AND HEAT TRANSFER
Funding Number(s)
CONTRACT_GRANT: NAG5-956
Distribution Limits
Public
Copyright
Other