HYDRO-GAS-DYNAMIC MODEL OF MOTION OF GAS-SATURATED LIQUID IN A CENTRIFUGAL POROUS PUMP


 An approach has been developed to the formation of a theoretical model movement gas- saturated liquid in flow path porous centrifugal pump, as an assembly system for feeding reaction mass liquid-propellant rocket engines. The is based on physical turbulent motion gas-liquid mixture, within which conservation equations are used. Two models proposed that describe mixture pump two-phase one- dimensional formulation and quasi-homogeneous one, complementing each other. A impeller closed- type constant width considered. energy losses at inlet impeller, well disk friction associated with rotation fixed housing, not taken into account. parameters viscous inertial hydraulic resistance coefficients body In particular, influence static pressure gradient gas-saturated force accumulation gas stability supply by pumping unit noted. use makes it possible, calculation methods, evaluate values characterizing media pumps designed systems propellant components engines, reduce amount experimental testing new modernized propulsion space stages launch vehicles.