Fibre Chemistry

, Volume 18, Issue 1, pp 63–67 | Cite as

Formation of the stream of liquid at the inlet to a spinneret hole

  • V. P. Pervadchuk
  • I. O. Glot
  • V. I. Yankov
  • V. Z. Volkov
  • L. B. Mal'kov
Machines And Apparatus

Conclusions

Investigation of the formation of a stream of liquid at the entrance to a spinneret hole has shown that the size of the disturbing zone in the reservoir and the profile of liquid flow velocity at the entrance to the capillary depend on the Reynolds number and the rheological properties of the liquid.

When Re<1, rearrangement of the stream velocity fields in the initial section of the capillary takes place identically for all values of the mean velocity and viscosity of the liquid, and the length of thehydrodynamic stabilization section for lengthwise stream velocity depends basically on the radius of the reservoir. When Re>10, the length of the hydrodynamic stabilization section depends only on the Reynolds number.

The formation and magnitude of the stagnant zones at channel angles depends on the Reynolds number for Newtonian liquids, but for anomalously viscous liquids, it depends, even directly, on the mean velocity of the stream of liquid.

Keywords

Polymer Viscosity Reynolds Number Flow Velocity Velocity Field 

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Literature cited

  1. 1.
    V. P. Pervadchuk, I. O. Glot, V. I. Yankov, V. Z. Volkov, and L. B. Mal'kov, Khim. Volokna, No. 2, 33–35 (1984).Google Scholar
  2. 2.
    Chang Dei Khan, Rheology in Polymer Processing Processes [Russian translation], G. V. Vinogradov and M. L. Fridman, editors, Khimiya, Moscow (1979).Google Scholar
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    Z. Tadmor and C. G. Gogos, Principles of Polymer Processing, Wiley-Interscience (1979).Google Scholar
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    V. P. Pervadchuk, I. O. Glot, V. I. Yankov, B. Z. Volkov, and L. B. Mal'kov, Khim. Volokna, No. 2, 36–37 (1984).Google Scholar

Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • V. P. Pervadchuk
  • I. O. Glot
  • V. I. Yankov
  • V. Z. Volkov
  • L. B. Mal'kov

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