Rheological properties and hydrodynamics of the unstabilized flow of the non-Newtonian fluids in the working channels of moulding equipment

Authors

  • Сергей Викторович Носко National Technical University of Ukraine "Kyiv Polytechnic Institute", 37, Prospect Peremohy, 03056, Kyiv-56, Ukraine https://orcid.org/0000-0001-8631-6118

DOI:

https://doi.org/10.15587/2312-8372.2015.44398

Keywords:

rheological properties, unregulated flow, channels with variable geometry

Abstract

The questions related to the rheological behavior of non-Newtonian fluids in channels of forming equipment. Parameters of rheological equation and their dependence on hydro and thermal modes of processing media are obtained as a result of data processing of rheometric research. Selecting the values of shear rate in the flow processing material and the temperature of its heating effect on the modal performance of the molding equipment and reduce energy consumption for its processing. An experimental research of the processes of unregulated movement of non-Newtonian fluids in channels with sharply varying geometry is conducted. It is shown that the length of the hydrodynamic flow stabilization depends on the rheological properties of the medium and the conditions of entry of the forming equipment into the working channels. Information about the characteristics of the flow medium is manifested in the presence of anomalies of viscosity of inertial forces in the flow required for the analysis and calculation of process parameters of high-speed spinning of viscose fibers.

Author Biography

Сергей Викторович Носко, National Technical University of Ukraine "Kyiv Polytechnic Institute", 37, Prospect Peremohy, 03056, Kyiv-56

Candidate of Technical Science, Associate Professor

Department of applied aerohydromechanics and mechanotronics

 

References

  1. Yankov, V., Pervadchuk, V. P., Boiarchenko, V. I. (1989). Protsessy pererabotki voloknoobrazuiushchih polimerov (metody rascheta). M.: Himiia, 320.
  2. Serkov, A. T. (1981). Viskoznye volokna. M.: Himiia, 296.
  3. Perepelkin, K. E. (1978). Fiziko-himicheskie osnovy protsessov formovaniia himicheskih volokon. M.: Himiia, 180.
  4. Ziabitskii, A. V., Kovach, H. (1989). Vysokoskorostnoe formovanie volokon. M.: Himiia, 480.
  5. Kohovskaia, T. N. (1996). Issledovanie viazkosti rasplavov polimerov. Koloidnaia himiia, 2, 188-192.
  6. Targ, S. M. (1961). Osnovnye zadachi teorii laminarnyh techenii. M.: Nauka, 370.
  7. Tachibana, M., Iemoto, Y. (1981). Steady Laminar Flow in the Inlet Region of Rectangular Ducts. Bulletin of JSME, Vol. 24, № 193, 1151–1158. doi:10.1299/jsme1958.24.1151
  8. Torner, R. B. (1972). Osnovnye protsessy pererabotki polimerov. M.: Himiia, 452.
  9. Snigerev, B. A., Taziukov, F. H. (2010). Neizotermicheskoe polzushchee techenie viazkouprugoi zhidkosti pri formirovanii volokon. Vestnik Udmurtskogo universiteta. Seriia matematika, mehanika, informatika, 2, 101–108.
  10. Mackley, M. R., Rutgers, R. P. G., Gilbert, D. G. (1998, April). Surface instabilities during the extrusion of linear low density polyethylene. Journal of Non-Newtonian Fluid Mechanics, Vol. 76, № 1-3, 281–297. doi:10.1016/s0377-0257(97)00122-5
  11. Garifullin, F. A., Taziukov, F. H. (2002). Matematicheskoe modelirovanie protsessa priadeniia niti iz rasplava polimera v usloviiah neizotermichnosti. Vestnik Kazanskogo tehnologicheskogo universiteta, 1-2, 187–193.
  12. Snigerev, B. A., Taziukov, F. H. (2005). Usilennoe modelirovanie laminarnyh techenii razbavlennyh rastvorov polimerov. Teplomassoobmennye protsessy i apparaty himicheskoi tehnologii. Kazan': KGTU, 137–142.
  13. Kutuzov, A. G. (2007). Vybor konfiguratsii vhodnogo uchastka formuiushchei golovki ekstrudera. Vestnik Kazanskogo gosudarstvennogo tehnicheskogo universiteta, 2, 49–51.
  14. Boger, D. V., Hur, D. U., Binnington, R. J. (1986, January). Further observations of elastic effects in tubular entry flows. Journal of Non-Newtonian Fluid Mechanics, Vol. 20, 31–49. doi:10.1016/0377-0257(86)80014-3
  15. Nosko, S. V., Mosiichuk, V. A. (2001). Issledovanie kinematicheskih harakteristik potoka v kanalah litnikovoi sistemy, metodami vizualizatsii. Vestnik Kievskogo politehnicheskogo instituta. Mashinostroenie, 63, 79–82.
  16. Nosko, S. (2014). Research of hydrodynamic conditions of entrance in channels of process equipment. Eastern-European Journal Of Enterprise Technologies, 3(7(69)), 49-54. doi:10.15587/1729-4061.2014.24876

Published

2015-05-28

How to Cite

Носко, С. В. (2015). Rheological properties and hydrodynamics of the unstabilized flow of the non-Newtonian fluids in the working channels of moulding equipment. Technology Audit and Production Reserves, 3(1(23), 56–60. https://doi.org/10.15587/2312-8372.2015.44398