Rheology of polymer melts and solutions

• Autorzy: Walicka A. , Walicki E.
• Języki publikacji: EN

Abstrakty

EN

In this work the authors consider some rheological models describing the fluid behaviours of polymer melts and solutions; these behaviours exhibit both viscoplastic and viscoelastic character. After presentation the bases of kinematics there were presented three dimensional models of pseudo-, visco-plastic and visco-elastic fluids of Rivlin-Ericksen and complex second grade fluids. Joining these models suitably one obtained the generalized models of second grade fluids. The connection between the above mentioned fluids is modelled in the following way: the constant coefficient of shear viscosity of a second grade fluid (Rivlin-Ericksen type) is replaced by a plastic viscosity taken from viscoplastic fluids. As an example the flow of generalized second grade fluid of the Shulman type in rectilinear channels is considered.

Słowa kluczowe

EN

polimer melts and solutions; viscoplastic and viscoelastic behaviour; second grade fluids; Shulman-Rivlin-Ericksen model; flows in rectilinear channels

PL

lepkosprężystość; przepływy prostoliniowe

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2010
• Tom: Vol. 15, no 4
• Strony: 1253--1271
• Opis fizyczny: Bibliogr. 22 poz., tab.

Twórcy

autor

Walicka A.

autor

Walicki E.

• University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, P.O.Box 47, 65-516 Zielona Góra, POLAND

Bibliografia

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