Journal of Applied Electrochemistry

, Volume 24, Issue 7, pp 632–638 | Cite as

Study of mass transfer in viscoelastic liquids by segmented electrodiffusion velocity probes

  • V. Sobolík
  • S. Martemyanov
  • G. Cognet


Mass transfer on a circular cylinder with a diameter of 0.52 mm was studied in polymer solutions by measuring the directional characteristics of a three-segment electrodiffusion velocity probe. The free stream velocity was varied in the range 0.01–0.31 m s−1 and the polyacrylamide concentration in the range 0.001–1% (by mass). A small amount of polymer produced large changes in mass transfer distribution on the cylinder in comparison to the distribution in Newtonian liquid. In particular it has been shown that the transfer rate in the aft portion of the cylinder is greater than in the front part if the Weissenberg number exceeds some critical value. The situation was identified where the local mass transfer was constant around the cylinder, i.e. the surface was uniformly accessible to diffusion.


Polymer Mass Transfer Polyacrylamide Transfer Rate Polymer Solution 
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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • V. Sobolík
    • 1
  • S. Martemyanov
    • 2
  • G. Cognet
    • 3
  1. 1.Institute of Chemical Process FundamentalsAcademy of Sciences of Czech RepublicPrague 6Czech Republic
  2. 2.Institute of ElectrochemistryRussian Academy of SciencesMoscow V-71Russia
  3. 3.Institute of MechanicsGrenoble CedexFrance

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