Accession Number : AD0775022

Title :   Bottom and Surface Proximity Effects on the Added Mass of Rankine Ovoids.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Fickel,Monty George

Report Date : DEC 1973

Pagination or Media Count : 43

Abstract : The free-surface and bottom-proximity effects on the added mass of Rankine ovoids of various length-to-diameter ratios were experimentally investigated by vertically oscillating the ovoids normal to their major axis. The results have shown that the bottom-proximity increases the added mass and the free-surface proximity decreases it. Furthermore, the added mass increases with increasing length-to-diameter ratio, i.e., for more cylinder-like ovoids, and approaches that predicted analytically for an infinitely long cylinder. (Modified author abstract)

Descriptors :   *Geometric forms, *Hydrodynamics, Mass, Lift to drag ratio, Vibration, Resonant frequency, Theses

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE