2000
DOI: 10.1002/(sici)1097-0363(20000530)33:2<175::aid-fld8>3.0.co;2-8
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Depth-averaged two-dimensional curvilinear explicit finite analytic model for open-channel flows

Abstract: A depth‐averaged two‐dimensional model has been developed in the curvilinear co‐ordinate system for free‐surface flow problems. The non‐linear convective terms of the momentum equations are discretized based on the explicit–finite–analytic method with second‐order accuracy in space and first‐order accuracy in time. The other terms of the momentum equations, as well as the mass conservation equation, are discretized by the finite difference method. The discretized governing equations are solved in turn, and ite… Show more

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Cited by 6 publications
(1 citation statement)
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“…Boundary conditions for this model are problematic. In theory, for subsonic flow, two characteristics enter the system and one characteristic leaves the system (for open boundaries); this would necessitate that two boundary conditions be set for inflow and one for outflow [15]. In practice, however, this scheme does not work as well for boundaries The other method of dealing with mixed inflow and outflow boundaries is to use zero order extrapolation on those boundaries for all velocity and surface elevation [21].…”
Section: Boundary Conditionsmentioning
confidence: 99%
“…Boundary conditions for this model are problematic. In theory, for subsonic flow, two characteristics enter the system and one characteristic leaves the system (for open boundaries); this would necessitate that two boundary conditions be set for inflow and one for outflow [15]. In practice, however, this scheme does not work as well for boundaries The other method of dealing with mixed inflow and outflow boundaries is to use zero order extrapolation on those boundaries for all velocity and surface elevation [21].…”
Section: Boundary Conditionsmentioning
confidence: 99%