[KSCI] Korea Science Citation Index Service

An Experimental Study on Friction Reduction by Additives in a Water Channel

Kim Wu-Joan (Dept. of Naval Architecture & Marine Engineering, Mokpo National Univ.)
Kim Hyoung-Tae (Dept. of Naval Architecture & Ocean Engineering, Chungnam National Univ.)

Publication Information

Journal of Ship and Ocean Technology / v.9, no.1, 2005 , pp. 27-37 More about this Journal

Abstract

An experimental study has been carried out as a basic research for the development of the friction drag reduction technology for water-borne vehicles by injecting microbubbles or polymer solution. Experimental apparatus and procedures have been devised and prepared to measure the changes of the wall friction with the injection of additives and the basic experimental data on friction drag reduction are obtained for fully developed channel flows. The effects of key controlling parameters were investigated for higher drag reduction with varying the concentration and the injection rate of additives. The frictional drag has been reduced up to $25\%$ with the microbubble injection and $50\%$ with the polymer solution injection.

Keywords

friction reduction; microbubbles; polymer solution; water channel;

Citations & Related Records

Reference

1	Jang, J.H. and H. Kim. 1999. On the reduction of a ship resistance by attaching an air cavity to its flat bottom. J. Society of Naval Architects of Korea, 36, 2, 1-8
2	Kato, H., K. Miura, H. Yamaguchi and M. Miyanaga. 1998. Experimental study on microbubble ejection method for frictional drag reduction. J. Marine Science and Technology, 3, 122-129 DOI ScienceOn
3	Kim, D.S., W.J. Kim and H.T. Kim. 2002. Experimental study of friction drag reduction in turbulent flow with polymer and microbubble injection. Proceedings of the 2nd National Congress on Fluids Engineering, Korea
4	Kodama, Y., A. Kakugawa, T. Takahashi and H. Kawashima. 2000. Experimental study on microbubbles and their applicability to ships for skin friction reduction. Int. J. Heat and Fluid Flow, 21
5	Madavan, N.K., S. Deutch and C.L. Merkle. 1984. Reduction of turbulent skin friction by microbubbles. Physics of Fluids, 27, 2, 356-362 DOI ScienceOn
6	Takahashi, T., A. Kakugawa, S. Nagaya, T. Yanagihara and Y. Kodama. 2001. Mechanism and scale effects of skin friction reduction by microbubbles. Proceedings of the 2nd Symposium on Smart Control of Turbulence, Japan
7	White, F.M. 1990. Viscous Fluid Flow, 1st Ed. 461, McGraw-Hill
8	Zakin, J. and Y. Qi. 2001. Some recent developments in surfactant drag reduction. Proceedings of the 2nd Symposium on Smart Control of Turbulence
9	Kato, H., T. Iwashina, M. Miyanaga and H. Yamaguchi. 2000. Effect of micro bubbles on the structure of turbulence in a turbulent boundary layer. J. Marine Science and Technology, 5
10	Choi, K. (ed.). 1991. Recent developments in turbulence management. Fluid Mechanics and Its Application, 6
11	Gyr, A. and H.W. Bewersdorff. 1995. Drag reduction of turbulent flows by additives. Fluid Mechanics and Its Application, 32
12	Breuer, K. 2003. Sensors, actuators and algorithms for practical implementations of turbulent boundary layer control. Proceedings of the 4th Symposium on Smart Control of Turbulence, Univ. of Tokyo, Japan
13	McCormick, M.E. and R. Bhattacharya. 1973. Drag reduction of a submersible hull by electrolysis. Naval Engineers Journal, 85, 11-15 DOI ScienceOn
14	Meng, J.C.S. (ed.). 1989. Proceedings of the International Symposium on Seawater Drag Reduction, Newport, Rhode Island
15	Kodama, Y., A. Kakugawa, T. Takahashi, S. Nagaya and K. Sugiyama. 2002. Microbubbles: drag reduction mechanism and applicability to ships. Proceedings of the 24th Symposium on Naval Hydrodynamics, Japan
16	Sellin, R.H.J. and R.T. Moses (ed.). 1989. Drag Reduction in Fluid Flows: Techniques for Friction Control, Ellis Horwood Limited