Drag Reduction by Ejecting Additive Solutions Into Pure-Water Boundary Layer
- 1 December 1972
- journal article
- Published by ASME International in Journal of Basic Engineering
- Vol. 94 (4) , 749-754
- https://doi.org/10.1115/1.3425541
Abstract
Drag reduction caused by ejecting additive solutions from a slot into a pure-water boundary layer on a flat plate has been systematically studied. Results include drag measurements for a plane boundary, smooth and rough, with various openings of the slot and with various concentrations and discharges of the ejected additive solution. Conclusions have been drawn on the additive requirement in external flows and on the ejection technique for an optimum drag reduction.Keywords
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