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Abstract

A review is made of the experimental evidence and theoretical considerations evolving from studies of the wake formed by an aerodynamically-smooth sphere moving in steady rectilinear motion through a turbulence-free stream. The roles of complex fluid dynamic phenomena which include boundary layer separation, vorticity transfer and those characterized by the Strouhal Number, as well as less evident fine scale processes are presented, with reference being made to pertinent two-dimensional cylinder studies.