Hydrodynamic characteristics of an experimental model of the target in the MK-1 liquid-metal target system

The results of an experimental study of the hydrodynamics of air flow in a model of a liquid-metal lead-bismuth target of a 600 kW MK-1 system are presented. The shape of the experimental model corresponded precisely to that of a real target; the scale of the linear dimensions was 1:1. The Reynolds number for air flows in the model and a liquid-metal lead-bismuth alloy in the target were approximately the same. The hydraulic resistance of the target shape was determined experimentally. The main hydraulic characteristics of the coolant in the heat-stressed sections of the target are presented graphically. The design of the washer for the the flow part of the target is such that it smoothes the velocity field and velocity pulsations in the energy-dense section of the target.[PUBLICATION ABSTRACT]