Print Email Facebook Twitter A mathematical model of the flow and bed topography in curved channels Title A mathematical model of the flow and bed topography in curved channels Author Olesen, K.W. Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 1985-01-01 Abstract A two-dimensional horizontal mathematical model of the flow and bed topography in alluvial channel bends is presented. The applicability of the model is restricted to channels of which the width-depth ratio is large, the Froude number is small, bed load is dominant and grain sorting effects are negligible. First order analyses of the mathematical model, using both steady and unsteady perturbations, are carried out, and an integration procedure based on a CSFT finite difference approximation of the mathematical model is outlined. Stability and accuracy of the numerical model are investigated. Computational results are compared with data from two laboratory flumes and with data from a small natural river. The computed bed topographies and flow distributions agree rather well with the measured data, if the model is properly calibrated. Subject bend flowriver bendcurved channelannular flumeriver morphology To reference this document use: http://resolver.tudelft.nl/uuid:94b02c43-421c-4ba6-ac0c-19aa4d59b2a4 Publisher Delft University of Technology ISSN 0169-6548 Source Communications on hydraulics, 1985-01 Part of collection Institutional Repository Document type report Rights (c) 1985 Olesen, K.W. Files PDF CommHydr8501.pdf 2.23 MB Close viewer /islandora/object/uuid:94b02c43-421c-4ba6-ac0c-19aa4d59b2a4/datastream/OBJ/view