Accession Number : AD0621741

Title :   HORIZONTAL OSCILLATIONS OF FALLING SPHERES.

Descriptive Note : Final rept.,

Corporate Author : CALIFORNIA UNIV LOS ANGELES INST OF GEOPHYSICS AND PLANETARY PHYSICS

Personal Author(s) : Shafrir,Uri

Report Date : 01 FEB 1965

Pagination or Media Count : 46

Abstract : Experiments with solid spheres with diameters of 3/16 in. to 14/16 in. and specific gravities in the range of 1.14 to 14.95 gm/cc, falling in distilled water at 20 - 24 C were carried out. With the aid of a stereophotographic-strobe technique, the time resolved, three dimensional trajectory of each sphere was recorded. Analysis of the trajectories revealed the existance of horizontal oscillations of a falling sphere, with amplitude and wave length depending to some extent on the Reynolds number. (Author)

Descriptors :   (*FALLING BODIES, OSCILLATION), (*OSCILLATION, FALLING BODIES), HYDRODYNAMICS, SPHERES, VISCOSITY, WATER, DRAG, VORTICES, TRAJECTORIES, REYNOLDS NUMBER, STEREOPHOTOGRAPHY

Distribution Statement : APPROVED FOR PUBLIC RELEASE