Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Kazumasa Mizumura"'
Publikováno v:
Journal of Hydraulic Engineering. Oct2003, Vol. 129 Issue 10, p769. 8p.
Autor:
Kazumasa Mizumura
Publikováno v:
Journal of Hydrologic Engineering. 17:851-857
Peaks of suspended sediment concentration in rivers appear before peak discharge appears. The observation of discharge is usually done in many rivers for river management, but the suspended sediment concentration is not always observed. The suspended
Autor:
Kazumasa Mizumura, Yu Ito
Publikováno v:
Journal of Hydrologic Engineering. 16:926-934
The influence of moving rainstorms on overland flow is studied by a semianalytical solution and experiments. The effect of the velocity of the moving rainstorms on water depth changes is approximately presented by the kinematic wave method. The effec
Autor:
Yu Ito, Kazumasa Mizumura
Publikováno v:
Journal of Hydrologic Engineering. 16:736-745
An analytical solution of the nonlinear kinematic wave model of overland flow with time-varying rainfall on a sloping plane is presented by the characteristic equation. To obtain it in the closed form, we approximate discharge of Manning’s formula
Autor:
Tsubasa Kaneda, Kazumasa Mizumura
Publikováno v:
Journal of Hydrologic Engineering. 15:718-724
This study has experimentally and theoretically investigated the downstream boundary condition of unconfined groundwater flow through the trapezoidal aquifers of which upstream end is vertical and downstream seepage face is sloping. Flow through the
Autor:
Kazumasa Mizumura
Publikováno v:
Journal of Hydrologic Engineering. 14:1165-1172
This study has experimentally and theoretically derived the boundary condition of the unconfined groundwater flow at the drawdown end. It has been shown that the hydraulic gradient is theoretically 1 at the drawdown end, including the physical condit
Autor:
Kazumasa Mizumura
Publikováno v:
Journal of Hydrologic Engineering. 14:1156-1164
This study presents an approximate solution of the nonlinear Boussinesq equation (NBE). The approximate solution of NBE is assumed to consist of space function and the Fourier cosine series which has time-varying coefficients. The space function is v
Autor:
Kazumasa Mizumura
Publikováno v:
Journal of Hydrologic Engineering. 11:539-546
An analytical solution of the nonlinear kinematic wave model of overland flow on a sloping plane for time-varying excess rainfalls of sinusoidal functions is presented by the method of characteristics. To obtain the closed form of the analytical solu
Publikováno v:
Journal of Hydrologic Engineering. 11:144-149
This study presents a downstream boundary condition for the nonlinear Boussinesq equation (NBE) in an unconfined rectangular aquifer using experimental results, which is often caused by drought flow in a recession period. It is possible to obtain a s
Autor:
Kazumasa Mizumura
Publikováno v:
Journal of Hydrologic Engineering. 10:468-476
A theoretical analysis derives that master recession curves on log paper indicate the physical occurrence of stream flows. The master recession curves in this study are generated by one-dimensional overland flow without and with lateral flow and grou