Abstract: The hydrodynamic performances of a novel hydraulic shock
generator are examined. The shock generator is designed to impose
the strong power of waterhammer in mining industry. The
experimental results show that the waterhammer produced by the
periodic fast switch of a flowing fluid has different features
with that of a single closure observed by other researchers. In
particular, the intensity of the waterhammer depends largely on
the switch frequency due to the interaction of successive
pressure waves. These flow transient phenomena are theoretically
proved by the simulation results based on the finite difference
method of characteristics.
Key words: Shock
generator Waterhammer Periodical switch Method of characteristics
*
This project
is supported by National Natural Science Foundation of China (59835160). Manuscript received on
November 18, 1999; revised manuscript January 30, 2000
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