ERRORS OF KINEMATIC‐WAVE AND DIFFUSION‐WAVE APPROXIMATIONS FOR SPACE‐INDEPENDENT FLOWS ON INFILTRATING SURFACES

作者: V. P. SINGH

DOI: 10.1002/(SICI)1099-1085(199607)10:7<955::AID-HYP350>3.0.CO;2-G

关键词: Kinematic waveGeometryMathematical analysisHydrographInflowRiccati equationMathematicsKinematicsInitial value problemDimensionless quantityMathematical model

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

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