Accession Number : AD0605582

Title :   A PRELIMINARY STUDY OF THE EFFECT OF THE FREE SURFACE ON THE DRAG OF A TRUNCATED 2:1 ELLIPSOID,

Corporate Author : IOWA UNIV IOWA CITY INST OF HYDRAULIC RESEARCH

Personal Author(s) : Newsham,Arthur D.

Report Date : AUG 1964

Pagination or Media Count : 1

Abstract : The study of the drag force on truncated, axisymmetric, supercavitating bodies near a free surface involved the design, construction, and checking of the apparatus and instrumentation necessary to conduct the experiments. A truncated 2:1 ellipsoid at zero angle of yaw was chosen for the initial investigation. The drag of this body at zero angle of yaw was measured and compared with existing data for a 2:1 ellipsoid completely submerged. In addition, some preliminary work concerning the effect of the proximity of the free surface was performed.

Descriptors :   (*ELLIPSOIDS, DRAG), (*DRAG, ELLIPSOIDS), UNDERWATER, TOWED BODIES, CAVITATION, YAW, HYDRODYNAMICS, EXPERIMENTAL DATA

Distribution Statement : APPROVED FOR PUBLIC RELEASE