Mixing in Stratified Jets
Publication: Journal of Hydraulic Engineering
Volume 127, Issue 3
Abstract
Experiments were performed to measure the mixing characteristics of turbulent momentum jets discharged horizontally into a linearly-stratified, stationary environment. These flows can occur when sewage is discharged into water bodies such as lakes. The centerline dilution was found to follow the results for an unstratified jet up to the point where the jet begins to collapse under the influence of the stratification. The distance at which this occurs is slightly longer than that reported previously from visual observations. The dilution then continues to increase with distance, but more slowly. The results are interpreted in terms of stratified turbulence collapse, and a model is proposed for the initial and final collapse of the turbulence in the jet. Implications for mixing zone models are discussed.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 127 • Issue 3 • March 2001
Pages: 194 - 200
History
Received: Jul 6, 1999
Published online: Mar 1, 2001
Published in print: Mar 2001
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