Accession Number:

AD0436790

Title:

Experimental Study of High-Speed Hydrofoils. Volume III,

Descriptive Note:

Corporate Author:

GRUMMAN AIRCRAFT ENGINEERING CORP BETHPAGE NY

Personal Author(s):

Report Date:

1963-08-26

Pagination or Media Count:

59.0

Abstract:

This test program was conducted to measure the hydrodynamic characteristics of a series of supercavitating and transcavitating hydrofoil models with various planforms and sections to provide a design procedure to predict hydrodynamic characteristics for this type hydrofoil. Twenty hydrofoil models were tested in the Grumman Whirling Tank at three depths and at a sufficient number of speeds and angles of attack to fully define their hydrodynamic characteristics. Lift, drag, pitching moment, and strut base pressure were measured for all models, and cavity pressure and foil base pressure were measured for the supercavitating models. Classic supercavitating hydrofoil theory is shown to predict test results with an accuracy adequate for design if a modified value for the crossflow lift coefficient is accepted. Author

Subject Categories:

  • Marine Engineering
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE