In this paper, experimental data collected in a straight flume having a bed covered by grasslike vegetation have been used to analyze flow resistance for flexible submerged elements. At first, the measurements are used to test the applicability of Kouwen’s method. Then, a calibration of two coefficients appearing in the semilogarithmic flow resistance equation is carried out. Finally, applying the P-theorem and the incomplete self-similarity condition, a flow resistance equation linking the friction factor with the shear Reynolds number, the depth-vegetation height ratio and the inflection degree is deduced.
CAROLLO FG, FERRO V, TERMINI D (2005). Flow resistance law in channel with flexible submerged vegetation. JOURNAL OF HYDRAULIC ENGINEERING, 131, 554-564 [10.1061/(ASCE)0733-9429(2005)131:7(554)].
Flow resistance law in channel with flexible submerged vegetation
CAROLLO, Francesco Giuseppe;FERRO, Vito;TERMINI, Donatella
2005-01-01
Abstract
In this paper, experimental data collected in a straight flume having a bed covered by grasslike vegetation have been used to analyze flow resistance for flexible submerged elements. At first, the measurements are used to test the applicability of Kouwen’s method. Then, a calibration of two coefficients appearing in the semilogarithmic flow resistance equation is carried out. Finally, applying the P-theorem and the incomplete self-similarity condition, a flow resistance equation linking the friction factor with the shear Reynolds number, the depth-vegetation height ratio and the inflection degree is deduced.
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