An Eexperiment on the Steady Wake behind a Sphere

概要

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The characteristics of the steady wake behind a sphere were studied experimentally using dyed water for visualization. Throughout the detailed photo graphic observations this work infers the strong possibility of the existence of a closed recirculating eddy behind a sphere even at R = 10 or lower and shows that the eddy can preserve its steady state up to the case for R~190 (R represents the Reynolds number based on the diameter of the sphere ). In addition , new profiles for the variations of wake length and wake separation angle against the steady state Reynolds numbers are presented, The significance of the study on the sphere wake in relation to the cloud physics is also pointed out.
琉球大学理工学部,Science and Engineering Division, University of the Ryukyusの論文