Research Article
Nov 1972
Buoyant Jets with Three-Dimensional Trajectories
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VIEW THE REPLYAuthor: Eric HirstAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 98, Issue 11
Abstract
A new integral method is devised to predict the hydrothermal behavior of buoyant jets discharged to infinite, flowing, stratified ambients through single submerged diffusers. The method, based on an integration of the basic partial differential equations written in a natural coordinate system, is more general than previous methods. In addition, a new generalized entrainment function is defined which includes the effects of internal turbulence, buoyancy, jet orientation, and cross flow. Only one of the four entrainment coefficients is obtained by fitting predictions to data. Theoretical predictions are compared with 29 different flows. Agreement between theory and data is good; this is particularly significant as the range in experimental flow variables is considerable and the four entrainment coefficients are maintained constant for all predictions.
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Published In
Journal of the Hydraulics Division
Volume 98 • Issue 11 • November 1972
Pages: 1999 - 2014
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Nov 1972
Published online: Feb 3, 2021
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Eric Hirst
Res. Engr., ORNL-NSF Environmental Program, Oak Ridge National Lab., Oak Ridge, Tenn.
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