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Experimental Investigation of Drag Reduction by Polymer Additives  

성형진 (한국과학기술원)
위장우 (한국선급)
권순홍 (부산대학교기계기술연구소)
전호환 (부산대학교기계기술연구소)
Publication Information
Journal of Ocean Engineering and Technology / v.16, no.4, 2002 , pp. 1-6 More about this Journal
Abstract
Experimental investigation of drag reduction by adding a polymer additive(polyacrylamid, N-401P) into water is carried out in a Circular Water Channel. The effect of viscosity, surface roughness and degradation as a function of running time is also measured with varying the concentration of polymer additives(20ppm,100ppm) and Reynolds numbers. Near and far wakes past a circular cylinder are observed by LDV. Drag forces are measured with a strain-gaged device. The experimental results show that around 5%-30% of drag reduction with the polymer solution are observed. The larger effects of drag reduction can be found at low range of Reynolds number, more roughened surface cylinder. The effect of polymer solution for near wakes is larger than for far wakes.
Keywords
Polymer Additives; Drag Reduction; Turbulent Intensity; Surface Roughness;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Study in Friction Reduction with Dilute Polymer Solutions /
[ Dunlop, E.H. ] / Ph. D. Dissertation, University of Strathclyde
2 Flow of Dilute Polymer Solution about Circular Cylinder /
[ Sarpkaya, T.;Rainey, P.G.;Kell, R.E. ] / J. Fluid Mech.   DOI
3 Drag Reduction Fundmentals /
[ Virk, P.S. ] / A.I.Ch.E.J.   DOI   ScienceOn
4 /
[ Streeter, V.L.;Wylie, E.B. ] / Fluid Mechanics
5 /
[ Tennekes, H.;Lumely, J.L. ] / A First Course in Tubulence
6 The Laminar Flow of Dilute Ploymer Solution /
[ James, D.F.;Acosta, A.J. ] / J. Fluid Mech.   DOI
7 Turbulent Flow Measurements by Laser Velocimeter in Circulation Water Channel /
[ Choi, E.S.;Sung, H.J.;Kwon, J.H. ] / J. of SNAK   과학기술학회마을
8 /
[ Hoerner, S.F. ] / Fluid-Dynamic Drag, Practical Information on Aerodynamic Drag and Hydrodynamic Resistance
9 Drag Reduction by Additives /
[ Lumley, J.L. ] / Ann. Rev. Fluid Mech.   DOI   ScienceOn
10 Drag Reduction in Turbulent Flow by Polymer Additives /
[ Lumley, J.L. ] / J. Polym. Sci. Macromol. Rev.   DOI
11 The Effect of Polymer Additives on Laminar Seperation /
[ Kim, B.K.;Telionis, D.P. ] / Phys. Fluids   DOI
12 /
[ Amflilokhiev, W.B.;Ferguson, A.M. ] / Univ. of Glasgow, Dept. of Naval Architecture Experiment Tank Report No 8
13 A Tracer Dispersion Study of the Drag - Reduction Effect in a Turbulent Pipe Flow /
[ Bryson, A.W.;Arunachalam, V.R.;Fulford, G.D. ] / J. Fluid Mech.   DOI