6533b7cffe1ef96bd1259ab4

RESEARCH PRODUCT

Flow Resistance Law in Channels with Flexible Submerged Vegetation

Donatella TerminiFrancesco Giuseppe CarolloVito Ferro

subject

Flow resistanceopen-channel flow flow resistance vegetatiom dimension analysisMechanical EngineeringShear resistanceReynolds numberMechanicsOpen channel flow; Flow resistance; Vegetation; Dimensional analysisOpen-channel flowPhysics::Fluid DynamicsFlumesymbols.namesakeFriction factorsymbolsGeotechnical engineeringGeologyWater Science and TechnologyCivil and Structural Engineering

description

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.

yearjournalcountryeditionlanguage
2005-07-01Journal of Hydraulic Engineering
https://doi.org/10.1061/(asce)0733-9429(2005)131:7(554)