Construction And Testing Of Coatings For Drag Reduction
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Author | : F. W. BOGGS |
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Total Pages | : 77 |
Release | : 1962 |
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The construction and testing of selected compliant coatings for drag reduction are described. Included are the scaling relations, description of test bodies, types of coatings and methods of construction, testing procedures, the phenomenon of static divergence, qualitative analysis, and conclusions. (Author).
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Total Pages | : 234 |
Release | : 1963 |
Genre | : Science |
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Author | : |
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Total Pages | : 236 |
Release | : 1962 |
Genre | : Elastomers |
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Total Pages | : 0 |
Release | : 2004 |
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The skin-friction drag of compliant coatings was measured using an axi-symmetric test model in a water tunnel for flow speed up to 4.5 m/s at the Reynolds number of 2.3 million. There were measurable drag reductions for up to 3% from three out of five compliant coatings tested. Only one coating showed a small drag increase, and the other had no change in drag. For all the tests, the 95% confidence level in measured drag reduction was 1% for flow velocities between 2.5 and 4.5 m/s. The error analysis suggested that the uncertainty was progressively increased with a reduction in flow velocity.
Author | : S. C. Dickinson |
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Total Pages | : 48 |
Release | : 1984 |
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The drag of three compliant coatings was measured in the DTNSRDC 36-inch water tunnel. Two coatings were of the 'Kramer' type, while the other one was a closed-cell neoprene foam. The drag of the 2.032-m (80-in.) long and 0.737-m (29-in.) wide compliant coatings was compared to the drag of a smooth, solid reference plate.
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Total Pages | : 44 |
Release | : 1962-07-15 |
Genre | : Government publications |
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Author | : United States. Department of Commerce. Office of Technical Services |
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Total Pages | : 522 |
Release | : 1962 |
Genre | : Government publications |
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Author | : American Society of Mechanical Engineers. Multiphase Flow Committee |
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Total Pages | : 194 |
Release | : 1984 |
Genre | : Boundary layer |
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Author | : |
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Total Pages | : 476 |
Release | : 1968 |
Genre | : Weights and measures |
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Author | : United States. National Bureau of Standards |
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Total Pages | : 470 |
Release | : 1983 |
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