<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The study on bedload transport behaviour is widely explored from the last few decades and many semiempirical or empirical equilibrium transport equations are developed. The phenomenon is a very complex due to its varied physical properties like velocity, depth, slope, particle size in the alluvial system. In practical applications, these formulae have appreciable deviation from each other in derivation and also their ranges of applications are different. Here, bedload transports have been categorized into moderate bedload transport and intense bedload transport depending upon the Einstein bedload transport parameter. Based on large database of different bedload measurements, a comparative analysis has been performed to ascertain prediction ability of different bedload equations based on various statistical criteria such as the coefficient of determination, Nash-Sutcliffe coefficient and index of agreement. It has been found that equations based on shear stress have worked better than other approaches (discharge, probabilistic and regression) for flume observations.</p></abstract>

The study on bedload transport behaviour is widely explored from the last few decades and many semiempirical or empirical equilibrium transport equations are developed. The phenomenon is a very complex due to its varied physical properties like velocity, depth, slope, particle size in the alluvial system. In practical applications, these formulae have appreciable deviation from each other in derivation and also their ranges of applications are different. Here, bedload transports have been categorized into moderate bedload transport and intense bedload transport depending upon the Einstein bedload transport parameter. Based on large database of different bedload measurements, a comparative analysis has been performed to ascertain prediction ability of different bedload equations based on various statistical criteria such as the coefficient of determination, Nash-Sutcliffe coefficient and index of agreement. It has been found that equations based on shear stress have worked better than other approaches (discharge, probabilistic and regression) for flume observations.

Predictive Capability of Bedload Equations Using Flume Data

Department of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati-781039, India

Journal of Hydrology and Hydromechanics

{"article-title":"Predictive Capability of Bedload Equations Using Flume Data"}

The study on bedload transport behaviour is widely explored from the last few decades and many semiempirical or empirical equilibrium transport equations are...

Predictive Capability of Bedload Equations Using Flume Data

Publié en ligne: 06 mars 2012

Pages: 45 - 56

DOI: https://doi.org/10.2478/v10098-012-0004-5

Mots clés
aluviálny kanál, transport splavenín, hydraulický žľab, presnosť výpočtu, tangenciálne napätie

This content is open access.

Predictive Capability of Bedload Equations Using Flume Data

Publié en ligne: 06 mars 2012

Pages: 45 - 56

DOI: https://doi.org/10.2478/v10098-012-0004-5

Mots clésaluviálny kanál, transport splavenín, hydraulický žľab, presnosť výpočtu, tangenciálne napätie

This content is open access.

Mots clés
aluviálny kanál, transport splavenín, hydraulický žľab, presnosť výpočtu, tangenciálne napätie