Estimate of Drag Coefficient for a Finite Patch of Rigid Cylinders
Publication: Journal of Hydraulic Engineering
Volume 145, Issue 2
Abstract
This note presents laboratory measurements of the drag coefficient for a finite patch of vegetation that was simulated with a limited number of rigid cylindrical rods. The experiment was designed based on an analogy between the drag imposed by a vegetation patch in an open-channel flow and that experienced by the patch settling in a water tank. The results show that the average drag coefficient calculated from the measured settling velocity can be expressed as a function of the patch porosity. The experimental data are also consistent with previous predictions by large eddy simulations.
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Information
Published In
Journal of Hydraulic Engineering
Volume 145 • Issue 2 • February 2019
Copyright
©2018 American Society of Civil Engineers.
History
Received: Aug 30, 2017
Accepted: Jul 30, 2018
Published online: Nov 24, 2018
Published in print: Feb 1, 2019
Discussion open until: Apr 24, 2019
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