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Flow Through a Porous Rubble Mound Weir

Author(s): Evan Koutandos; Panayotis Prinos

Linked Author(s): Panagiotis Prinos

Keywords: Porous weir; Discharge capacity; Open channel flow

Abstract: In the present study the hydrodynamic characteristics of porous rubble mound weirs are examined experimentally. The effect of the governing parameters ( (a) Reynolds number: Re=q/ν, (b) Porosity of the rubble mound: n, (c) Rubble grain diameter in dimensionless form: dm/h0, (d) River bed slope: i) that determine the flow rate is examined. Results in dimensionless diagrams are presented. In addition, results are compared with those for an impermeable weir. The destruction mechanism of the structure is also investigated and some basic characteristics are presented.


Year: 2005

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