Abstract
This paper proposed clustered energy dissipators and ribbed energy dissipators in view of the energy dissipation of wide and narrow alternated river channels in mountainous areas. According to the structure and layout of energy dissipation piers, clustered energy dissipators are divided into several layout types: 1# “2-1 alternating” dissipator, 2# “2-1 inclined alternating” dissipator, 3# “4-3 alternating” energy dissipator; ribbed energy dissipator is divided into: 4# “ribbed” dissipator, 5# “ribbed + step-wise” dissipator. In this paper, we used a standard k-ε model to carry out 3D turbulent numerical simulation of energy dissipation of different energy dissipators in wide and narrow river alternated channels in mountainous areas, and analyzed its energy dissipation effect, which can provide design guidance for remediation and river bank slope protection.
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