Boundary-Layer Control as a Means of Reducing Drag on Fully Submerged Bodies of Revolution

[+] Author and Article Information
B. Bar-Haim, D. Weihs

Department of Aeronautical Engineering, Technion—Israel Institute of Technology, Haifa, Israel

J. Fluids Eng 107(3), 342-347 (Sep 01, 1985) (6 pages) doi:10.1115/1.3242489 History: Received March 26, 1984; Revised July 10, 1985; Online October 26, 2009


The drag of axisymmetric bodies can be reduced by boundary-layer suction, which delays transition and can control separation. In this study, boundary-layer transition is delayed by applying a distributed suction technique. Optimization calculations were performed to define the minimal drag bodies at Reynolds numbers of 107 and 108 . The saving in drag relative to optimal bodies with non-controlled boundary layers is shown to be 18 and 78 percent, at Reynolds numbers of 107 and 108 , respectively.

Copyright © 1985 by ASME
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