| contributor author | Hossein Afzalimehr | |
| contributor author | François Anctil | |
| date accessioned | 2017-05-08T20:43:00Z | |
| date available | 2017-05-08T20:43:00Z | |
| date copyright | October 1998 | |
| date issued | 1998 | |
| identifier other | %28asce%290733-9429%281998%29124%3A10%281054%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/24540 | |
| description abstract | Numerous formulations have been proposed linking friction factors to the gravel-bed river downstream hydraulic geometry. Data from 280 rivers show that existing gravel-bed power and semilogarithmic formulations fail to correctly predict the friction factors. A new gravel-bed semilogarithmic formulation is developed using nonlinear statistical tools. It considers the influence of the relative roughness, the Froude number, the sediment mobility parameter, and a cross-sectional form factor. The best fit is achieved by modifying the adjustment parameter and the interior of the logarithmic term of the universal velocity distribution equation. | |
| publisher | American Society of Civil Engineers | |
| title | Estimation of Gravel-Bed River Flow Resistance | |
| type | Journal Paper | |
| journal volume | 124 | |
| journal issue | 10 | |
| journal title | Journal of Hydraulic Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9429(1998)124:10(1054) | |
| tree | Journal of Hydraulic Engineering:;1998:;Volume ( 124 ):;issue: 010 | |
| contenttype | Fulltext | |
