Accession Number : AD0484523

Title :   SUPERCAVITATING LIFTING HYDROFOILS - SECOND ORDER THEORY.

Descriptive Note : Technical rept.,

Corporate Author : HYDRONAUTICS INC LAUREL MD

Personal Author(s) : Hsu, C. C.

Report Date : MAR 1966

Pagination or Media Count : 50

Abstract : The first- and second-order problems of steady cavity flows past lifting hydrofoils, based on single spiral vortex cavity termination models, are studied in detail. The general first- and second-order solutions are identical in form and, in general, can be expressed in terms of simple analytical functions. Numerical calculations have been carried out for flat-plate and circular-arc hydrofoils. Good agreement is found between the present results and previous nonlinear or high order calculations made by others. It is also found, to a good approximation, that second-order results for hydrofoils of arbitrary shapes and with long trailing cavities can generally be expressed in simple terms of linearized results.

Descriptors :   (*HYDROFOILS, HYDRODYNAMICS), (*HYDRODYNAMIC CONFIGURATIONS, MATHEMATICAL PREDICTION), FLUID DYNAMICS, FLUID FLOW, VORTICES, MATHEMATICAL MODELS, FLAT PLATE MODELS, GEOMETRIC FORMS, CAVITATION, WAKE, LIFT, DRAG, MARINE ENGINEERING.

Subject Categories : Marine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE