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http://dx.doi.org/10.3795/KSME-B.2009.33.6.389

Correlation Between the Composition of Compliant Coating Material and Drag Reduction Efficiency  

Lee, In-Won (부산대학교 첨단조선공학연구센터)
An, Nam-Hyun (거제대학 조선선박기술계열)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.33, no.6, 2009 , pp. 389-395 More about this Journal
Abstract
A specially designed flat plate was mounted vertically over the axial line in the wind tunnel of the Pusan National University. Strain balances were mounted in the trailing part of the plate to measure the skin friction drag over removable insertions of $0.55{\times}0.25m^2$ size. A set of the insertions was designed and manufactured: 3 mm thick polished metal surface and three compliant surfaces. The compliant surfaces were manufactured of a silicone rubber Silastic$^{(R)}$ S2 (Dow Corning company). To modify the viscoelastic properties of the rubber, its composition was varied: 90% rubber + 10% catalyst (standard), 92.5% + 7.5% (weak), 85% + 15% (strong). Modulus of elasticity and the loss factor were measured accurately for these materials in the frequency range from 40 Hz to 3 kHz. The aging of the materials (variation of their properties) for the period of one year was documented as well. Along with the drag measurement using the strain balance, velocity and pressure were measured for different coating. The strong compliant coating achieved 5% drag reduction within a velocity range $20{\sim}40$ m/s while standard and weak coatings increased drag reduction.
Keywords
Compliant Coating; Drag Reduction; Wind Tunnel Experiment; Turbulent Boundary Layer;
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1 Carpenter, P. W., 1990, 'Status of Transition Delay Using Compliant Walls,' in Viscous Drag Reduction in Boundary Layers, eds. D.M. Bushnell and J. N. Heffner, Progress in Astronautics and Aeronautics, Vol.123, pp.79-113
2 Lakes, R. S. and Wineman, A., 2006, 'On Poisson's Ratio in Linearity Viscoelastic Solids,' J. Elasticity, Vol. 85, pp.45-63   DOI
3 Kulik, V. M., Rodyakin, S. V., Suh, S-B., Lee, I. and Chun, H. H., 2005, 'The Response of Compliant Coating to Nonstationary Disturbances,' Phys. Fluids, Vol.17, pp.088104-1-088104-4   DOI
4 Semenov, B. N., 1996, 'Analysis of Four Types of Viscoelastic Coating for Turbulent Drag Reduction,' Emerging Techniques in Drag Reduction, MEP, London, Edmunds, pp.187-206
5 Schlihting, H., 1968, Boundary Layer Theory, 6th ed. McGraw-Hill. Book Co, New York
6 Bushnell, D. M., Hefner, J. N. and Ash, R. L., 1977, 'Effect of Compliant Wall Motion on Turbulent Boundary Layers,' Phys. Fluids, Vol.20, pp.S31S48   DOI
7 Choi, K.-S., Yang, X., Clayton, B. R., Glover, E. J., Atlar, M., Semenov, B. N. and Kulik, V. M., 1997, 'Turbulent Drag Reduction Using Compliant Surfaces,' Proc. Royal Soc. London A, Vol. 453, pp.2229-2240   DOI   ScienceOn
8 Bandyopadhyay, P. R., Henoch, C., Hrubes, J. D., Semenov, B. N., Amirov, A. I., Kulik, V. M., Malyuga, A. G., Choi, K-S. and Escudier, M. P., 2005, 'Experiments on the Effects of Ageing on Compliant Coating Drag Reduction,' Physics of Fluids, Vol. 17, No. 8, pp. 0851041-9   DOI   ScienceOn
9 Kramer, M. O., 1962, 'Boundary Layer Stabilization by Distributed Damping,' Naval Engrs.J., Vol. 74, No. 2, pp.341-348   DOI
10 Gad-el-Hak, M., Blackwelder, R. F. and Riley, J. J., 1984, 'On the Interaction of Compliant Coatings with Boundary Layer Flows,' J. Fluid Mech., Vol.140, pp.257-280   DOI   ScienceOn
11 Kulik, V. M., Poguda, I. S. and Semenov, B. N., 1991, 'Experimental Investigation of One-Layer Viscoelastic Coating Action on Turbulent Friction and Wall Pressure Fluctuations,' In Recent Developments in Turbulence Management, ed. K.-S. Choi, Kluwer, pp.263-289
12 Kornilov, V. I., Pavlyuchenko, A. M. and Sobolev, A.V., 2004, 'Effect of a Viscoelastic Coating on Friction Drag of a Flat Plate in Air Flow,' Thermophysics and Aeromechanics, Vol.11, No. 3, pp.405-415
13 Boiko, A. V., Kulik, V. M., Seoudi, B. M., Chun, H. H. and Lee, I., 2008 'Complex Method of Measurement of Viscoelastic Properties of Materials in Wide Frequency Range,' International Journal of Solids & Structures, submitted
14 Kulik, V. M., Lee, I. and Chun, H. H., 2008, 'Wave Properties of Coating for Skin Friction Reduction,' Phys. Fluids, Vol. 20, No. 7, pp.075109-1-075109-10   DOI   ScienceOn
15 Duncan, J. H., Waxman, A. M. and Tulin, M. P., 1985, 'The Dynamics of Waves at the Interface Between a Viscoelastic Coating and a Fluid Flow,' J. Fluid Mech., Vol.158, pp.177-197   DOI   ScienceOn
16 Kulik, V. M., Rodyakin, S. V., Lee, I. and Chun, H. H., 2005, 'Deformation of a Viscoelastic Coating Under the Action of Convective Pressure Fluctuations,' Exp. in Fluids, Vol. 38, No. 5, pp. 648-655   DOI   ScienceOn
17 Gad-el-Hak, M., 1996, 'Compliant Coatings: a Decade of Progress, Appl. Mech. Rev., Vol.49, pp.S147-S157   DOI   ScienceOn
18 Semenov, B. N., 1991, 'On Conditions of Modeling and Choice of Viscoelastic Coatings for Drag Reduction,' In Recent Developments in Turbulence Management, edited by K.-S. Choi, Kluwer, pp.241-261
19 Sternberg, J., 1962, 'A Theory for Viscous Sublayer of a Turbulent Flow,' J. Fluid Mech., Vol.13, pp.241-271   DOI
20 Amphilokhiev, V. B., Artyushkov, L. S., Barbanel, B. A., Korotkin, A. I., Mazaev, K. M., Maltsev, L. I. and Semenov, B. N., 2000, 'Modern State of the Theory of Boundary Layer Control,' Saint-Petersburg: SUE 'SPMDB 'Malachite.'