Abstract
The aim of this paper is to examine steady flow profiles over an inclined channel. Different steady flow profiles may appear depending on the type of flow, i.e. subcritical or supercritical. Here, the steady Saint-Venant model is adopted, its solution can be obtained through the application of the numerical integration method (trapezoid). When the water levels upstream and downstream of the channel are known, water level along the channel can be obtained as the solution of a non-linear system of equations, which is then solved by the Newton iteration. This method is known as the standard step method of simultaneous procedure. Furthermore, simulation is done using the measurement data at the downstream part of Ciliwung River. Field measurement data were collected in terms of the water level along the river, from TB Simatupang to PA. Manggarai. The result of numerical simulation is shown a good agreement with field measurement data.
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