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Theoretical model for flow of polymer melts in the screw channel
Author(s) -
Steller Ryszard T.
Publication year - 1990
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760300704
Subject(s) - isothermal process , materials science , isothermal flow , mechanics , flow (mathematics) , curvature , transverse plane , channel (broadcasting) , polymer , thermodynamics , open channel flow , composite material , physics , computer science , geometry , mathematics , structural engineering , engineering , computer network
Isothermal and nonisothermal flows of polymer melts in a screw channel are discussed. An exact solution for the isothermal flow of a power law fluid in a rectangular channel including both longitudinal and transverse velocity components is presented. A method to describe the effects of flights and curvature on flow behavior is proposed. The results are extended to deal with various nonisothermal flow conditions. The proposed theory has been numerically verified.