Submerged Hydraulic Jump Study Using DES
Publication: Journal of Hydraulic Engineering
Volume 143, Issue 3
Abstract
In the present paper, three-dimensional, unsteady, detached eddy simulation (DES) of a submerged hydraulic jump with an inlet Froude number of 8.2 is performed. The volume of fluid (VOF) method with a high-resolution interface capturing (HRIC) scheme is used for free-surface tracking. The mean velocity and turbulence quantities including the Reynolds stresses are compared with available experimental data to validate the results. The three-dimensional nature of the flow in the developing and developed zone of the submerged hydraulic jump is evaluated by examining the coherent structures using the criteria. Additionally, proper orthogonal decomposition (POD) analysis reveals the dominance of smaller structures in the developed region of the submerged hydraulic jump. The presence of these smaller scales is directly responsible for the energy dissipation characteristic of the submerged hydraulic jump.
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Published In
Journal of Hydraulic Engineering
Volume 143 • Issue 3 • March 2017
Copyright
©2016 American Society of Civil Engineers.
History
Received: Jan 6, 2016
Accepted: Jun 22, 2016
Published online: Oct 24, 2016
Published in print: Mar 1, 2017
Discussion open until: Mar 24, 2017
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