抄録
The characteristics of shock phenomena in a one-component two-phase bubbly flow induced by a sudden valve closure are investigated. The pressure rise and the propagation velocity of the pressure waves and their decay in the axial direction are obtained experimentally and are discussed quantitatively. Their characteristics are different from those of a two-component two-phase flow because of the mass transfer between the vapor and the liquid. The potential surge can be expressed by ΔPpso=CTPρTPjTP by extrapolating the value ΔPpso at time t=0 before the occurrence of the mass transfer. The values of pressure rise and propagation velocity are also compared with the analytical results by the linearization method described in a previous report. It is shown that they can be expressed well in generalized forms which depend on the relaxation time τM of the mass transfer, obtained by the linearization method.
