| contributor author | Rafael Duarte | |
| contributor author | Juliano Ribeiro | |
| contributor author | Jean-Louis Boillat | |
| contributor author | Anton Schleiss | |
| date accessioned | 2017-05-08T21:51:11Z | |
| date available | 2017-05-08T21:51:11Z | |
| date copyright | November 2011 | |
| date issued | 2011 | |
| identifier other | %28asce%29hy%2E1943-7900%2E0000472.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/64294 | |
| description abstract | The overall dam-break phenomenon is currently well understood for reservoirs filled with water. However, many dams face serious problems of reservoir sedimentation. Thus, regarding risk management, the influence of a large amount of sediment in the reservoir on dam-break wave propagation is of great importance. Experimental investigations were performed to investigate the influence of the silting degree of reservoirs and grain size distribution on wave heights and velocities. Dam-break waves in silted-up reservoirs are the result of a two-phase flow formed by a layer of water over a layer of saturated sediments in which complex phenomena occur simultaneously. Sediments flow such as a viscous fluid from the dam breach until complete stoppage, and clear water flows over the sediments creating bed load transport. The final sediment deposition cone, the flow of the positive front, and maximum wave heights were studied. An empirical formula is proposed to describe the celerity of the positive wave front in the case of silted-up reservoirs. | |
| publisher | American Society of Civil Engineers | |
| title | Experimental Study on Dam-Break Waves for Silted-Up Reservoirs | |
| type | Journal Paper | |
| journal volume | 137 | |
| journal issue | 11 | |
| journal title | Journal of Hydraulic Engineering | |
| identifier doi | 10.1061/(ASCE)HY.1943-7900.0000444 | |
| tree | Journal of Hydraulic Engineering:;2011:;Volume ( 137 ):;issue: 011 | |
| contenttype | Fulltext | |
