Modification of the Engelund bed-load formula |
| |
| Institution: | State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China |
| |
| Abstract: | The classic Engelund bed-load formula involves four oversimplified assumptions concerning the quantity of particles per unit bed area that can be potentially entrained into motion, the probability of sediment being entrained into motion at a given instant, the mean velocity of bed-load motion, and the dimen-sionless incipient shear stress. These four aspects are reexamined in the light of new findings in hydrodynamics, and a modified bed-load formula is then proposed. The modified formula shows promise as being reliable in predicting bed-load transport rates in a wide range of flow intensities. |
| |
| Keywords: | Bed-load transport Incipient shear stress Entrainment probability Flow intensity |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
