TITLE:
Overbank Flow in a Multi-Staged Open Channel: Zonal and Overall Discharge Studies
AUTHORS:
Prateek Kumar Singh, Xiaonan Tang, Hamidreza Rahimi, Yutong Guan
KEYWORDS:
Overbank Floodplains, River Dynamics, Asymmetric Channels, Open-Channel Flows
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.11 No.3,
March
31,
2023
ABSTRACT: An improved divided channel method has been proposed by modelling a parameter using the function of depth ratio for a multi-stage compound channel. Experimental data suggest that as the flow depth increases over the second stage floodplain, fractional contribution of the main channel and first stage floodplain under bankfull height plays a pivotal role in shear layer and momentum distribution. Therefore, a new mathematical model has been suggested for estimating the stage-discharge relationship for staged channels of more than one floodplain using the 1D technique of overall roughness correction.