Matériaux et Construction

, Volume 1, Issue 6, pp 529–534 | Cite as

The viscosity of thin water films between two quartz glass plates

  • G. Peschel
Colloque RILEM Munich. 1–3 Avril 1968 Causes Physiques et Chimiques du Fluage et du Retrait du Béton

Summary

An apparatus for the determination of the viscosity coefficient of water in the neighbourhood of a quartz glass surface is described. The law of Stefan-Reynolds is applied in a special modification. The relative viscosity coefficient of water between two quartz glass plates having a distance smaller than 100 Å lies beyond 10 for small shearing stresses. Increasing shearing stresses lead to smaller values of the relative viscosity coefficient of such water zone, so that a non-Newtonian behaviour of flowing water in very thin layers can be accepted.

Keywords

Contact Force Quartz Glass Viscosity Coefficient Disjoin Pressure Thin Liquid Film 
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.

Résumé

On décrit un appareil pour la détermination du coefficient de viscosité de l'eau au voisinage d'une surface de quartz transparent. On applique ici une variante de la loi de Stefan-Reynolds. Le coefficient de viscosité relatif de l'eau entre deux plaques de quartz transparent maintenues à seulement 100 Å l'une de l'autre est de plus de 10 pour les faibles contraintes de cisaillement. Des contraintes de cisaillement croissantes déterminent des valeurs plus faibles du coefficient de viscosité relative, et l'on peut donc admettre que l'eau, sous forme de ces couches très minces, se caractérise par un écoulement non newtonien.

This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Deryagin B. V., Z. Phys.,84, 657 (1933).CrossRefGoogle Scholar
  2. [2]
    Deryagin, B. V., Obuchov, E.,Acta Physicochim. U.R.S.S.,5, 1 (1936).Google Scholar
  3. [3]
    Peschel, G., andAdlfinger, K. H., Naturwissenschaften,54, 614 (1967).CrossRefGoogle Scholar
  4. [4]
    Peschel, G.,Z. physik. Chem. (Neue Folge),59, 27–48 (1968).Google Scholar
  5. [5]
    Terzaghi, K. v., Z. angew. Math. Mech.,4, 107 (1924).Google Scholar
  6. [6]
    Wolkowa, Z. W., Kolloid Z.67, 280 (1934).CrossRefGoogle Scholar
  7. [7]
    Deryagin, B. V., andFedyakin, N. N., Dokl. Akad. Nauk SSSR147 (2), 1463–6 (1962).Google Scholar
  8. [8]
    Stefan, J., Sitzungsber. kaiserl. Akad. d. Wiss.69, 713 (1874).Google Scholar
  9. [9]
    Reynolds, O., Phil. Trans. Roy. Soc. (London),177, 157–234 (1886).Google Scholar
  10. [10]
    Peschel, G., unpublished.Google Scholar
  11. [11]
    Bazaron, U. B., Deryagin, B. V., Bulgadaev, A. V., Zh. Eksp. Teor. Fiz.,51, 969–82 (1966).Google Scholar

Copyright information

© Secrétariat de Rédaction 1968

Authors and Affiliations

  • G. Peschel
    • 1
  1. 1.On Institut für Physikalische ChemieWürzburgGermany

Personalised recommendations