Laminar Surface Water Flow over Vegetated Ground
Publication: Journal of Hydraulic Engineering
Volume 133, Issue 3
Abstract
This study examines low Reynolds number flow over vegetated sloping ground. Instead of using the traditional empirical formula related to resistance or frictional roughness, a new approach is presented by considering the flow inside the vegetation layer as porous media flow governed by Biot’s poroelastic theory as well as inside the soil layer. There is a discrepancy in the velocity distributions of flow over vegetative mantle area and bare area, respectively. Due to the change of the vegetation density, the effects of vegetation porosity and vegetation blockage on surface water flow are discussed.
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Acknowledgments
This note was completed during a stay at the Center for Water and Watershed Studies, College of Forest Resources, University of Washington, Seattle, on Government Funds of Ministry of Education, Republic of China (Taiwan).
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 133 • Issue 3 • March 2007
Pages: 335 - 341
Copyright
© 2007 ASCE.
History
Received: Jul 14, 2005
Accepted: Jun 13, 2006
Published online: Mar 1, 2007
Published in print: Mar 2007
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