洪水流出の模型実験について

Abstract

This paper describes the simulation technique of the runoff process by a hydraulic model, especially, in the viewpoint of the fact that the dominant runoff components during floods aresupplied by the flows on and/or through the porous surface stratum of a river basin. The simili-tude is derived by the use of the dynamic equations in which both the gravity and the friction termsare dominant in comparison with other terms. After considering the practical problems in makinga hydraulic model by the similitude, the possibility of the simulation is found out. The evaluationof the inevitable error resulted from such an approximate simulation is given comparing with theresult which will be obtained by an assumed model satisfying the theoretical similitude.