THE EFFECT OF NOSE RADIUS ON THE CAVITATION-INCEPTION CHARACTERISTICS OF TWO-DIMENSIONAL HYDROFOILS

Results of an analytical investigation of the cavitation properties of modified marine propeller-type hydrofoils are presented. In particular, dependence of the critical cavitation number and the cavitation-free, angle-of-incidence range on changes in the leading-edge thickness is determined. It is shown that within a narrow range of changes of leading-edge thickness, a delay in inception is possible, depending on the design problem under consideration. An increase in critical inception speed, accompanied by a sacrifice in some of the cavitation-free, angle-of-incidence range occurs for a small increase in the leading-edge thickness. A range of thickness changes exists for which beneficial results can be obtained. (Author)

• Corporate Authors:

  Naval Ship Research and Development Center

  Bethesda, MD  United States  20034

  Naval Ship Systems Command

  Washington, DC  United States 
• Authors:
  • Valentine, D T
• Publication Date: 1974-7

Media Info

• Pagination: 49 p.

Subject/Index Terms

• TRT Terms: Cavitation (Mechanics); Cavitation erosion; Hydrofoils
• Old TRIS Terms: Cavitating hydrofoils
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00084434
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NSRDC-3813
• Files: TRIS
• Created Date: Jun 26 1975 12:00AM