✦ LIBER ✦

Accuracy of kinematic wave and diffusion wave approximations for space-independent flows on infiltrating surfaces

✍ Scribed by V. P. Singh

Publisher: John Wiley and Sons
Year: 1995
Tongue: English
Weight: 737 KB
Volume: 9
Category: Article
ISSN: 0885-6087
DOI: 10.1002/hyp.3360090102

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✦ Synopsis

Error equations for the kinematic wave and diffusion wave approximations were derived under simplified conditions for space-independent flows occurring on infiltrating planes or channels. These equations specify error as a function of time in the flow hydrograph. The kinematic wave, diffusion wave and dynamic wave solutions were parameterized through a dimensionless parameter y which is dependent on the initial conditions. This parameter reflects the effect of initial flow depth, channel bed slope, lateral inflow and channel roughness when the initial condition is non-vanishing; it reflects the effect of bed slope, channel roughness, lateral inflow and infiltration when the initial condition is vanishing. The error equations were found to be the Riccati equation.

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