ASSESSMENT OF BED-LOAD PREDICTORS BASED ON SAMPLING IN A GRAVEL BED RIVER |
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| Authors: | HADDADCHI Arman OMID Mohammad H DEHGHANI Amir A |
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| Affiliation: | [1]School of Environment,Griffith University,Nathan,Qld 4111,Australia [2]Department of Irrigation and Reclamation Engineering,University of Tehran,Tehran,Iran [3]Department of Irrigation Engineering,Golestan Agriculture and Natural Resources University,Gorgan,Iran |
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| Abstract: | Bedload transport in alluvial channels has been extensively studied and different equations based on field and/or experimental data have been proposed.Prediction of bed-load transport rate using different equations results in wide ranges which are not always reliable.In this study,some of the universal bedload predictors were evaluated with measured load by a Helley-Smith sampler in the Node River,a gravel bed river in the northeast part of Iran.From 19 sets of data,14 series of data were used to evaluate the bed-load transport equations.The results show that the equations presented by Van Rijn,Meyer-Peter and Mueller,and Ackers and White may adequately predict bedload transport in the range of field data. |
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| Keywords: | bedload transport gravel bed river bed-load sampling Gorgan-Iran |
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