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Kinematic Wave 理論에 의한 流域 Model에 관한 硏究
李殷泰 慶熙大學校 1987 論文集 Vol.16 No.-
Watershed models of various types have been used to estimate flood peaks. A watershed model may be defined as a physical of mathematical representation of the real watershed. Linear mathematical models describing stream or river and overland outflow due to storm runoff do not explain several important observed features. such as the change in shape of the discharge hydrograph and the non-linear variation of peak discharge rate with variation of rainfall intensity and capability of infiltration. In the present paper, analytical solution for a hydraulic model is obtained by the method of implicit based on the kinematic wave approximation for complex watersheds described as a cascade(logical flow sequence)of overland flow planes and channels, and a parametric infiltration model is incorporated with a surface runoff model And two types of flow resistance relationships are considered : the Chezy formula (or Manning formula)and a friction relationship that is initially laminar and then becomes turbulant above a transition Reynolds number.