Nuclei and propeller cavitation inception
Book
·
OSTI ID:100927
- Bassin d`Essais des Carenes, Val de Reuil (France). Research Dept.
- Pennsylvania State Univ., State College, PA (United States). Applied Research Lab.
Propeller cavitation inception tests were conducted in the Grand Tunnel Hydrodynamique (GTH) of the Bassin d`Essaid des Carenes. Both acoustic and visual cavitation inception were determined for leading-edge sheet, travelling bubble, and tip vortex. These data were obtained for specific water quality conditions. The water quality was determined from cavitation susceptibility meter measurements for degassed water (maximum liquid tension, few nuclei), low injection rate of microbubbles (medium liquid tension, low nuclei concentration), medium injection rate of microbubbles (medium liquid tension, high nuclei concentration) and high injection rate of microbubbles (minimum liquid tension, high nuclei concentration). Results clearly demonstrate a different influence of water quality for each type of cavitation. Little variation in cavitation inception index for a significant increase in liquid tension and microbubble size distribution was found for leading-edge sheet; however, tip vortex cavitation inception index decreased significantly for an increase in liquid tension. In addition, a dependency on event rate was determined for tip vortex cavitation inception.
- OSTI ID:
- 100927
- Report Number(s):
- CONF-940659--; ISBN 0-7918-1373-8
- Country of Publication:
- United States
- Language:
- English
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