Abstract

Studies have been made to compare, and discuss, the analytical solutions obtained by the method of characteristics with the experimental results about the waterhammer. The measurements have been carried out using a 1/6 scale model of the primary coolant system of the experimental fast breeder reactor JOYO belonging to the Power Reactor and Nuclear Fuel Development Corporation. The waterhammer has taken place at the valve throat area ratio ranging from 1/4 to 4/4 with variations in circulating pump revolving speed in the angular acceleration rages 20 to 180 rad/s2 and -20 to -180 rad/s2. Good agreement is found between the analytical and experimental results. Therefore the calculation models and idea used in this paper are practically useful enough.

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