Abstract: A two-phase nozzle having a converging diverging configurations is equipped with a flow divider at its inlet. The flow divider is arranged to act upon an incoming flow of two-phase liquid to break the liquid phase into finely divided droplets which are directed into the nozzle entrance region so that minimum contact is made with the inside wall of the nozzle. The finely divided droplets are thus thoroughly dispersed in the gas phase of the mixture producing maximum acceleration of the fluid through the nozzle.