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Interacting Divided Channel Method for Compound Channel Flow |
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| Authors: | Fredrik Huthoff Pieter C Roos Denie C M Augustijn Suzanne J M H Hulscher |
| Affiliation: | 1Ph.D. Candidate, Water Management and Engineering, Faculty of Engineering Technology, Univ. of Twente, Enschede, The Netherlands; Consultant, Hydraulic Systems Modeling, HKV Consultants, Lelystad, The Netherlands. 2Assistant Professor, Water Management and Engineering, Faculty of Engineering Technology, Univ. of Twente, Enschede, The Netherlands. 3Professor, Water Management and Engineering, Faculty of Engineering Technology, Univ. of Twente, Enschede, The Netherlands. |
| Abstract: | A new method to calculate flow in compound channels is proposed: the interacting divided channel method (IDCM), based on a new parametrization of the interface stress between adjacent flow compartments, typically between the main channel and floodplain of a two-stage channel. This expression is motivated by scaling arguments and allows for a simple analytical solution of the average flow velocities in different compartments. Good agreement is found between the analytical model results and laboratory data from the literature. |
| Keywords: | Flood plains Hydraulic models Flow resistance Hydraulic models Lateral stress |
