Oblique and Vertical Jet Dispersion in Channels
Publication: Journal of Hydraulic Engineering
Volume 123, Issue 5
Abstract
The generalized laws of degradation and spreading of the boundaries of a submerged round jet discharging under oblique and vertical impingements into a channel have been investigated and derived. The laser Doppler anemometry (LDA) technique was adapted for measurement of mean velocities without any interference in the flow, and was utilized for the investigation of the complex three-dimensional circulating flow that was experienced in the channel. In the experiments, the inclination of the jet was varied from 45° to 90° to the bed of the channel, while differing ratios of channel width and depth to jet diameter were studied for various Froude numbers of the flow. The experimental results have been analyzed and compared with Glauret's theory for a radial wall jet as a first approximation neglecting gravity forces when small compared with turbulent forces. The research provides practical information for determining an efficient form of stilling basin for high velocity discharge from pipe outlets.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 123 • Issue 5 • May 1997
Pages: 456 - 462
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: May 1, 1997
Published in print: May 1997
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