| contributor author | Xudong Fu | |
| contributor author | Guangqian Wang | |
| contributor author | Xuejun Shao | |
| date accessioned | 2017-05-08T20:44:58Z | |
| date available | 2017-05-08T20:44:58Z | |
| date copyright | October 2005 | |
| date issued | 2005 | |
| identifier other | %28asce%290733-9429%282005%29131%3A10%28877%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/25819 | |
| description abstract | Through using a kinetic model for particles in turbulent solid–liquid flows, underlying mechanisms of sediment vertical dispersion as well as sediment diffusion coefficient are investigated. Four hydrodynamic mechanisms, namely gravitational settling, turbulent diffusion, effect of lift force, and that of sediment stress gradient, coexist in two-dimensional (2D) uniform and steady open-channel flows. The sediment diffusion coefficient consists of two independent components: one accounts for the advective transport of sediment probability density distribution function due to sediment velocity fluctuations, and the other results from sediment–eddy interactions. Predictions of the kinetic model are in good agreement with experimental data of 2D open-channel flows. In such flows, it is shown that: (1) the parameter | |
| publisher | American Society of Civil Engineers | |
| title | Vertical Dispersion of Fine and Coarse Sediments in Turbulent Open-Channel Flows | |
| type | Journal Paper | |
| journal volume | 131 | |
| journal issue | 10 | |
| journal title | Journal of Hydraulic Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9429(2005)131:10(877) | |
| tree | Journal of Hydraulic Engineering:;2005:;Volume ( 131 ):;issue: 010 | |
| contenttype | Fulltext | |
