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It is reported to develop the driving pump for the Low Noise La rge Cavitation Tunnel(LOCAT) which is under construction at Maritime & Ocean E ngineering Research Institute(MOERI). For low background noise condition of the LO CAT, it is crucial not only the best pump efficiency but also no cavity occurrence at any operating conditions. Design condition of the pump is determined by considering the required pump headrise, flow quantity, shaft rotation velocity and pump diameter. Performanc e analysis of the pump is conducted using commercial CFD codes (BladeGen + , CFX-10), and the predicted results are verified by a series of model tests. Cavity was not observe d at any operating condition in the model test, which were conducted at the midium cavitation tunnel of MOERI. The optimum pump for LOCAT, named as LP-11, was successfully developed through a series of pump design processes composed of blade design, perfo rmance analysis and model test. ※Keywords: Driving pump(), Low noise(), Cavitation(), Required headrise()

Development of the Driving Pump for the Low Noise Large Cavitation Tunnel