Velocity Profiles in Annular Passages

Abstract

<p>An experimental study of turbulent velocity profiles of water flowing in a vertical annular passage is reported in this thesis. Presented are profiles for eccentricities ranging from 0% to 80% and Reynolds numbers from 40,000 to 104,000 in an annulus having a 0.286 radius ratio.</p> <p>Velocities were measured along five radii for all but the concentric configuration and the two arbitrarily chosen configurations are represented in the form of cross-sectional maps of the isovels. A method for deriving the powers N1 and N2 as defined by the equations u/um = [(r2-r)/(r2-rm)]^N2 and u/um = [(r-r1)/(rm-r1)]^N1 is suggested, and these powers were found for the two configurations investigated.</p>