Rheologica Acta

, Volume 4, Issue 1, pp 53–55 | Cite as

On the use of power equations to relate shear-rate to stress in non-Newtonian liquids

  • G. W. Scott Blair


It is shown that some quite simple assumptions about the nature of the flow of non-Newtonian liquids lead to the use of the well-known power relation between shear-rate and stress, hitherto regarded as entirely empirical. The treatment is applicable both to thinning and to thickening liquids provided there is no hysteresis.


Polymer Power Relation Power Equation Simple Assumption 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1).
    de Waele, A., Oil and Colour J.6, 33 (1923), Kolloid-Z.36, 332 (1923).Google Scholar
  2. 2).
    Ostwald, Wo., Kolloid-Z.36, 99, 157, 248 (1925): ibid.38, 261 etc. (1926).Google Scholar
  3. 3).
    Reiner, M., Naturwiss.21, 294 (1933).Google Scholar
  4. 4).
    Philippoff, W., Viskosität der Kolloide (Dresden und Leipzig 1942).Google Scholar
  5. 5).
    Scott Blair, G. W., Kolloid-Z.47, 76 (1929).Google Scholar
  6. 6).
    Ostwald, Wo., Kolloid-Z.47, 176 (1929).Google Scholar
  7. 7).
    Huxley, J. S., Problems of Relative Growth (London 1932).Google Scholar
  8. 8).
    Sherman, P., Ed. Rheology of Emulsions (Oxford 1963).Google Scholar

Copyright information

© Dr. Dietrich Steinkopff-Verlag 1965

Authors and Affiliations

  • G. W. Scott Blair
    • 1
  1. 1.National Institute for Research in DairyingShinfieldEngland

Personalised recommendations