A DRAG MODEL FOR CAVITATING AXISYMMETRIC BODIES

A method for predicting the steady drag on cavitating axisymmetric bodies is presented. Portions of axisymmetric ellipsoids are fitted to the bodies and the forces acting on the bodies are assumed to be the pressure forces acting on the portions of the ellipsoids used. The pressure is calculated as if the ellipsoids were fully wetted in an ideal fluid. The method is accurate for practical purposes for body shapes for which data are available. On this basis, it is applied with confidence to other axisymmetric shapes. (Author)

• Corporate Authors:

  Naval Ordnance Laboratory

  Indian Head, MD  United States  20640
• Authors:
  • Guala, JRJ
  • Smith, C W
• Publication Date: 1973-9-1

Media Info

• Pagination: 59 p.

Subject/Index Terms

• TRT Terms: Angularity; Bluff bodies; Bodies of revolution; Cavitation (Mechanics); Drag; Ellipses; Hemispheres; Hydrodynamics; Mathematical models; Mathematical prediction
• Uncontrolled Terms: Angles
• Old TRIS Terms: Axisymmetric; Blunt bodies; Caliber; Conical bodies; Ellipsoids; Hydrodynamic configurations; Ogives; Parabolic bodies
• Subject Areas: Data and Information Technology; Design; Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00051749
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NOLTR-73-173 Tech Rpt
• Files: TRIS
• Created Date: Mar 25 1974 12:00AM