Accession Number:

AD0605514

Title:

TIP CLEARANCE FLOW IN TURBOMACHINES,

Descriptive Note:

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK ORDNANCE RESEARCH LAB

Personal Author(s):

Report Date:

1964-08-27

Pagination or Media Count:

117.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE