EXPERIMENTAL STUDY OF MODEL SIZE EFFECTS ON CAVITATION AND VENTILATION OF SURFACE-PIERCING STRUTS
An experimental program was conducted in the Lockheed Underwater Missile Facility to determine the effect of model size on the cavitation and ventilation of vertically, surface-piercing struts. The struts tested had chord lengths of 0.5, 1.0, and 2.0 ft., were manufactured to the same section profile, and were tested at a nominal submergence of one chord length. Tests were conducted at speeds from 17 to 32 fps for yaw angles ranging from 4 to 8 degrees. The sideforce and drag were measured and are presented for cavitating conditions preceeding ventilation inception and for fully-ventilated conditions. Motion pictures of the flow were used to determine quantitative features of the cavitation, spray sheet, and the mechanism of ventilation inception.
-
Corporate Authors:
Lockheed Missiles and Space Company Incorporated
111 Lockheed Way
Sunnyvale, CA United States 94088 -
Authors:
- Waid, R L
- Kramer, R L
- Publication Date: 1970-11
Media Info
- Pagination: 81 p.
Subject/Index Terms
- TRT Terms: Hydrofoil boats; Hydrofoils; Struts
- Uncontrolled Terms: Scale effect
- Old TRIS Terms: Cavitating hydrofoils; Hydrofoil craft; Surface piercing hydrofoils
- Subject Areas: Marine Transportation; Vehicles and Equipment;
Filing Info
- Accession Number: 00098230
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: LMSC-D026656 Final Rpt.
- Contract Numbers: N00014-69-C-0182
- Files: TRIS
- Created Date: Jul 29 1975 12:00AM