A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dimensional analysis was used to define the length of the flow saparation for the case of two-dimensional, uniform flow over dunes, which was expressed in terms of bed-form geometry and the sand size of the bed material. Experiments were conducted in a rectangular flume using artificial dunes and a flow visualization method to measure the flow separation length. When dunes are flat, length of the flow separation is affected by the sand-grain roughness. When dunes are steep, the length of the flow separation is due mainly to the bed-form geometry and is relatively constant. The reverse rectangular steps can be considered as dunes of infinite length, and the length of the flow separation for such steps will always be greater than that obtained for dunes of finite length.
Dimensional analysis was used to define the length of the flow saparation for the case of two-dimensional, uniform flow over dunes, which was expressed in terms of bed-form geometry and the sand size of the bed material. Experiments were conducted in a rectangular flume using artificial dunes and a flow visualization method to measure the flow separation length. When dunes are flat, length of the flow separation is affected by the sand-grain roughness. When dunes are steep, the length of the flow separation is due mainly to the bed-form geometry and is relatively constant. The reverse rectangular steps can be considered as dunes of infinite length, and the length of the flow separation for such steps will always be greater than that obtained for dunes of finite length.
Length of Flow Separation over Dunes
Engel, Peter (author)
Journal of the Hydraulics Division ; 107 ; 1133-1143
2021-01-01
111981-01-01 pages
Article (Journal)
Electronic Resource
Unknown
Discussion of “Length of Flow Separation over Dunes”
| ASCE | 2021
Online Contents | 2002
Flow over Triangular Elements Simulating Dunes
| ASCE | 2021
Ice-cover influence on flow structure over dunes
| British Library Online Contents | 1997