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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/1090

Title: Selection of Interface Plane in the Assessment of Discharge in Two Stage Meandering and Straight Compound Channels
Authors: Patra, K C
Khatua, K K
Issue Date: 2006
Citation: International Conference on Fluvial Hydraulics (IAHR) September 6-8, 2006-(River Flow-2006), Lisbon
Abstract: An investigation concerning the distribution of shear stress in the main channel and floodplain of meandering and straight compound channels are presented. Discharge in meandering compound channels is strongly dependant on the interaction between flow in the main channel and that in the floodplain. The usual practice in one dimensional analysis is to separate a compound section into subsections using ‘divided channel method’ through the assumed interface planes running from the main channel–floodplain junctions. Discharge for each subsections are calculated using Manning’s equation and added up to get the total discharge of the compound section. If the assumed interface is wrong the resultant discharge becomes erroneous. The apparent shear force at the assumed interface plane gives an insight into the magnitude of flow interaction between the main channel and the adjacent floodplains basing on which the merits of the selection of the interface plains for discharge estimation are deci...
URI: http://hdl.handle.net/2080/1090
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