A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Discharge Assessment in Compound Channel Flow
A series of laboratory tests were performed to measure the boundary shear stresses in a compound channel consisting of a main channel and associated shallow floodplains. Four different floodplain roughnesses were used. From these results apparent shear stresses across three different assumed main channel/floodplain interface planes (vertical, horizontal and diagonal) were calculated. The data was used with data from previous studies to derive a statistical relationship between the apparent shear stress on the vertical interface and several easily calculated parameters of the channel geometry and hydraulic characteristics. The accuracies of different methods of discharge calculation were shown to be dependent upon the assumptions they make regarding the magnitude of the apparent shear stress on the particular interface chosen. An apparent shear stress ratio was proposed which was found to be a useful yardstick in selecting the best method of discharge calculation for particular channel and flow conditions. Generally it was found that at low floodplain depths using the horizontal or diagonal interfaces gave better discharge results than the vertical.
Discharge Assessment in Compound Channel Flow
A series of laboratory tests were performed to measure the boundary shear stresses in a compound channel consisting of a main channel and associated shallow floodplains. Four different floodplain roughnesses were used. From these results apparent shear stresses across three different assumed main channel/floodplain interface planes (vertical, horizontal and diagonal) were calculated. The data was used with data from previous studies to derive a statistical relationship between the apparent shear stress on the vertical interface and several easily calculated parameters of the channel geometry and hydraulic characteristics. The accuracies of different methods of discharge calculation were shown to be dependent upon the assumptions they make regarding the magnitude of the apparent shear stress on the particular interface chosen. An apparent shear stress ratio was proposed which was found to be a useful yardstick in selecting the best method of discharge calculation for particular channel and flow conditions. Generally it was found that at low floodplain depths using the horizontal or diagonal interfaces gave better discharge results than the vertical.
Discharge Assessment in Compound Channel Flow
Wormleaton, Peter Richard (author) / Allen, John (author) / Hadjipanos, Panos (author)
Journal of the Hydraulics Division ; 108 ; 975-994
2021-01-01
201982-01-01 pages
Article (Journal)
Electronic Resource
Unknown
Discharge assessment in compound channel with floodplain roughness
| British Library Conference Proceedings | 1990
Flow velocity and discharge in channel with compound cross section
| British Library Conference Proceedings | 1994
Discharge Method to Estimate the Flow in Asymmetric Compound Open Channel
| Springer Verlag | 2023
Discharge assessment in an asymmetric compound channel by zero shear interface method
| Taylor & Francis Verlag | 2017
Upstream Discharge Distribution in Compound-Channel Flumes
| Online Contents | 2005