TIP CLEARANCE FLOW IN TURBOMACHINES,
Abstract
Two forms of cavitation have been recorded and attributed to the tip clearance flow. Cavitation resulting from this flow in the clearance area between the blade end and guide wall has been termed 'gap cavitation'. A second form of cavitation originates from the interaction of the tipleakage flow and main flow in the blade passage. This form of cavitation termed the 'tip vortex cavitation' occurs initially as a small 'feather' of cavitation attached to the leading edge tip of the blade, and as the local pressure is further reduced, the feather grows into a distinct cavity which extends from the leading edge of the blade and diagonally across the blade passage. Both forms of cavitation are considered in this report but primary effort was directed towards a study of 'gap cavitation'. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 27, 1964
- Accession Number
- AD0605514
Entities
People
- W. S. Gearhart
Organizations
- Pennsylvania State University