Accession Number : AD0290737

Title :   A COMPARISON OF EXPERIMENTAL DATA WITH SIMPLE THEORETICAL RESULTS FOR VENTILATED FLOW

Corporate Author : CONTROL DATA CORP MELVILLE N Y TRG DIV

Personal Author(s) : THOMSEN,PETER

Report Date : 20 AUG 1962

Pagination or Media Count : 1

Abstract : Behind a strut piercing the free surface and moving at a sufficient high speed, a fully ventilated cavity exists as a consequence of some basic dynamic conditions. A first simple analytic approach to the cavity shape and cavity drag can be carried out by applying the results of the 2-dimensional (2D) cavity theory. In this approach, 2D cavity flows are pieced together stripwise at various depths underneath the free surface and no considerations are made of the effects of the free surface nor of the tip end of the strut. The comparison between the results of the 2D cavity theory and those of experiments as to length and drag of the ventilated cavity are studied. (Author)

Descriptors :   *AERODYNAMIC CONFIGURATIONS, *CAVITATION, *CURVED PROFILES, *DRAG, CONFORMAL MAPPING, CONFORMAL MAPPING, EXPERIMENTAL DATA, FLUID MECHANICS, PLANING SURFACES, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE