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Rheology pp 463-468 | Cite as

Application of the Laser Doppler Velocimetry to Polymer Melt Flow Studies

  • H. Kramer
  • J. Meissner

Abstract

Laser Doppler velocimetry (LDV) is a new tool for fluid dynamics studies /1/. By LDV the velocity vector field can be measured without disturbing the flow itself. However, in polymer melt fluid dynamics, difficulties arise because of temperature problems, the relatively high pressure involved, and the often extremely slow flows. In this’ paper a LDV system is described which was set up especially for polymer melt flow investigations.

Keywords

Laser Doppler Velocimetry Velocity Vector Field Temperature Problem Apparent Shear Rate Deformation Rate Tensor 
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.

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References

  1. 1/.
    F. Durst, A. Melling and J.H. Whitelaw: Principles and Practice of Laser-Doppler Anemometry, Academic Press, 1976Google Scholar
  2. 2/.
    US and German standards: ASTM — D 1238-73 and DIN 53 735Google Scholar

Copyright information

© Springer Science+Business Media New York 1980

Authors and Affiliations

  • H. Kramer
    • 1
  • J. Meissner
    • 1
  1. 1.Department of Industrial and Engineering ChemistrySwiss Federal Institute of Technology (ETHZ)ZürichSwitzerland

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