Some Environmental Effects on Headform Cavitation Inception
Abstract
Cavitation-inception tests were performed on two headforms for which changes were made in the environment. Quantities which were varied, included type and amount of dissolved gas, chemical additives, time rate of change to cause inception, and temperature changes. Experimental procedure and relative air content had an appreciable effect on cavitation inception. Both headforms had the same designed minimum pressure coefficient; however, for one it was located 0.03 diam from the nose, and for the other, 0.73 diam. Inception was characterized by traveling bubbles on both headforms, with significant differences occurring in the bubble dynamics. Inception was determined visually and by counting occurrences.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1972
- Accession Number
- AD0763367
Entities
People
- David W Taylor
- Terry Brockett