抄録
In order to satisfy the needs to minimize the size of the feed water pump, application of inducer is under consideration. The small size inducers are tested by using the closed loop test stand. Several design parameters are investigated by manufacturing inducer models using rapid prototyping tools and ABS resin. The effect of inlet blade angle and tip clearance was investigated. The test result revealed that increase of clearance drastically deteriorate the cavitation performance and decrease of blade inlet angle proved to improve the cavitation performance.