CHARACTERIZATION OF TURBULENT DRAG REDUCTION IN ROTATING DISK SYSTEM

Yang KS; Choi HJ; Kim CB; Kim IS; Jhon MS

Korean Journal of Chemical Engineering, Vol.11, No.1, 8-13, January, 1994

Yang KS, Choi HJ, Kim CB, Kim IS, Jhon MS

Turbulent drag reduction in a rotating disk apparatus was characterized for a homologous series of polyethylene oxide(PEO) polymers covering a wide range of molecular weights. The concentration dependence of drag reduction in this system was shown to obey an empirical dray reduction equation which had been previously established by Virk et al. for flows in capillary tubes. The linear correlation between polymer concentration and C/DR for different molecular weights of PEO was also obtained. In addition, [C], defined as a characteristic intrinsic concentration, was found to be extremely useful in normalizing the drag reduction data in one homologous series of PEO.

[References]

Toms BA, Proc. 1st Int. Congress on Rheology, 2, 135, North Holland Publish Co., Amsterdam (1948)
Hough GR, "Viscous Flow Drag Reduction," 72, Progress in Astronautics and Aeronautics, p. 373, Princeton, N.J. (1980)
Oldroyd JG, Proc. 1st Int. Congress on Rheology, 2, 130, North Holland Publish Co., Amsterdam (1948)
Gadd GE, Nature, 212, 1348 (1966)
Gadd GE, Nature, 212, 874 (1966)
Brostow W, Ertepinar H, Singh RP, Macromolecules, 23, 5109 (1990)
deGennes PG, "Introduction to Polymer Dynamics," Cambridge University Press, Cambridge, Great Britian (1990)
Armstrong R, Jhon MS, Chem. Eng. Commun., 30, 99 (1984)
Yang KS, Choi HJ, Kim CB, Jhon MS, Korean J. Rheol., 3(1), 76 (1991)
Little RC, Ind. Eng. Chem. Fundam., 8, 557 (1969)
Virk PS, Merrill EW, Mickley HS, Smith KA, J. Fluid Mech., 30, 305 (1967)
Bailey FE, Kucera JL, Imhoff LG, J. Polym. Sci., 32, 517 (1958)
Little RC, Hansen RJ, Hunston DL, Kim OK, Patterson RL, Ting RY, Ind. Eng. Chem. Fundam., 14(4), 283 (1975)
Little RC, J. Colloid Interface Sci., 37, 811 (1971)
Ting RY, Little RC, J. Appl. Polym. Sci., 17, 3345 (1973)
Dschagarowa E, Mennig G, Rheol. Acta, 16, 309 (1977)

[Referenced By]

[1] Toms BA, Proc. 1st Int. Congress on Rheology, 2, 135, North Holland Publish Co., Amsterdam (1948)

[2] Hough GR, "Viscous Flow Drag Reduction," 72, Progress in Astronautics and Aeronautics, p. 373, Princeton, N.J. (1980)

[3] Oldroyd JG, Proc. 1st Int. Congress on Rheology, 2, 130, North Holland Publish Co., Amsterdam (1948)

[4] Gadd GE, Nature, 212, 1348 (1966)

[5] Gadd GE, Nature, 212, 874 (1966)

[6] Brostow W, Ertepinar H, Singh RP, Macromolecules, 23, 5109 (1990)

[7] deGennes PG, "Introduction to Polymer Dynamics," Cambridge University Press, Cambridge, Great Britian (1990)

[8] Armstrong R, Jhon MS, Chem. Eng. Commun., 30, 99 (1984)

[9] Yang KS, Choi HJ, Kim CB, Jhon MS, Korean J. Rheol., 3(1), 76 (1991)

[10] Little RC, Ind. Eng. Chem. Fundam., 8, 557 (1969)

[11] Virk PS, Merrill EW, Mickley HS, Smith KA, J. Fluid Mech., 30, 305 (1967)

[12] Bailey FE, Kucera JL, Imhoff LG, J. Polym. Sci., 32, 517 (1958)

[13] Little RC, Hansen RJ, Hunston DL, Kim OK, Patterson RL, Ting RY, Ind. Eng. Chem. Fundam., 14(4), 283 (1975)

[14] Little RC, J. Colloid Interface Sci., 37, 811 (1971)

[15] Ting RY, Little RC, J. Appl. Polym. Sci., 17, 3345 (1973)

[16] Dschagarowa E, Mennig G, Rheol. Acta, 16, 309 (1977)