Summary
Experimental results concerned with drag reduction by polymer additives in fully developed turbulent pipe flow are presented. Polystyrene samples with low dispersity dissolved in toluene were investigated. The Toms phenomenon is related to a reduction in bursting rate thus diminishing the production of turbulence. A Deborah number is defined as quantitative expression corresponding to the mechanism of drag reduction described.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Toms, B.A.; Some Observations on the Flow of Linear Polymer Solutions Through Streight Tubes at Large Reynolds Numbers. In Proc. First Intern, Congr. on Rheology, Vol. II (1948) 135–141.
Virk, P.S.; Drag Reduction Fundamentals. AIChE Journal, Vol. 21, No. 4 (1975) 625–565.
Lumley, J.L.; Drag Reduction in Turbulent Flow by Polymer Additives .J. Polymer Sci., Macromolecular Reviews, Vol. 7 (1973) 263–290.
Bueche, F.; Mechanical Degradation of High Polymers. J.Appl. Polymer Sci., Vol. IV, No. 10 (1960) 101–106.
Gampert, B.; Wagner, P.; Turbulent flow with polymer additives. Archives of Mechanics, No. 4 (1982).
Gampert, B.; Wagner, P.; Experimentelle Untersuchung turbulenter Rohrströmungen hochreiner wässriger Polyacrylamid-Lösungen. Will be published in Rheol. Acta.
Durst, F.; Haas, R.; Dehnströmungen mit verdünnten Polymerlösungen: Ein theoretisches Modell und seine experimentelle Verifikation. Rheol. Acta 20 (1981) 179–192.
Fuller, G.G.; Leal, L.G.; Flow birefringence of dilute polymer solutions in two-dimensional flows. Rheol. Acta 19 (1980) 580–600.
Kline, S.; Reynolds, W.C.; Schraub, F.A.; Rundstadler, P.W.; The structure of turbulent boundary layers. J. Fluid Mech., vol. 30, part 4 (1967) 741–773.
Kim, H.T.; Kline, S.J.; Reynolds, W.C.; The production of turbulence near a smooth wall in a turbulent boundary layer. J. Fluid Mech., vol. 50, part 1 (1971) 133–160.
Gadd, G.E.; Turbulence damping and drag reduction produced by certain additives in water. Nature, 206 (1965) 463–467.
Donohue, G.L.; Tiederman, W.G.; Reischman, M.M.; Flow visualization of the near-wall region in a drag-reducing channel flow. J. Fluid Mech., vol. 56, part 3 (1972) 559–575.
Bird, R.B.; Hassager, O.; Armstrong, R.C.; Curtiss, C.F.; Dynamics of Polymeric Liquids. Vol. II. New York: J. Wiley & Sons (1977).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1982 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Gampert, B., Wagner, P. (1982). Reduced Turbulence Production by Increased Elongational Viscosity. In: Haase, W. (eds) Recent Contributions to Fluid Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-81932-2_9
Download citation
DOI: https://doi.org/10.1007/978-3-642-81932-2_9
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-81934-6
Online ISBN: 978-3-642-81932-2
eBook Packages: Springer Book Archive