A Comprehensive Unsteady Depth-averaged
Model With Orthogonal Curvilinear Coordinate
System
Author(s)
Te-Yung Hsieh & Jinn-Chuang Yang
Abstract
A mathematical model is developed here to solve unsteady depth-
averaged shallow water flow equations. To enhance applicability,
an orthogonal curvilinear coordinate system is used. The governing
equations are solved by the two-step split-operator algorithm. Based on
the finite-volume concept, all of the spatial derivatives are estimated with
implicit central difference of second-order accuracy, while the convection
terms are solved by a hybrid scheme. The effective stresses incorporates
with a constant eddy-viscosity turbulence formulation to approximate the
laminar and turbulent Reynolds stresses and with the secondary flow
velocity profile proposed by de Vriend [1] to approximate the bend flow
pattern. Two case
Keywords
Related Book
Other papers in this volume
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