Vibration of Water-Turbine Draft Tubes

[+] Author and Article Information
Mitsukiyo Murakami

The Institute of Polytechnics, Osaka City University, Osaka, Japan

J. Eng. Power 83(1), 36-42 (Jan 01, 1961) (7 pages) doi:10.1115/1.3673120 History: Received August 13, 1959; Online January 10, 2012


The vibration in the draft tube of a water turbine is most severe when the turbine is running on part load. This is caused principally by the vortex core of whirling water in the draft tube. The theoretical and experimental investigations of the frequency and force of periodic vibration caused by the vortex core are described, and there is clarification of the draft-tube surge caused by vibration due to the vortex core.

Copyright © 1961 by ASME
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