Abstract: The results obtained through experiments on models concerning the phenomena of hysteresis characteristics of Francis pump-turbines generated when operated as turbine are described in the present ...

Abstract: The turbine hysteresis characteristics in Francis pump-turbines when operated as turbine were reported in the previous paper [1]. In the present report the characteristics of inner flow of runners ...

Abstract: The adaptability of the Winter-Kennedy index method [1] was examined, and consequently “Draft Tube Index Method” for Francis and diagonal flow pump-turbines under pumping operation were newly ...

Abstract: The object of this paper is to investigate the effects of cavitation on the discharge coefficient of sharp-edged orifice plates with reference to various degrees of cavitation as defined by a ...