Open AccessNumerical Simulation of the Non-Isothermal Co-Extrusion Fiber Spinning with Flow-Induced Crystallization
Author(s) -
B. Estela García Rojas,
acultad de
Estudios Superiores Zaragoza, UNAM, Batallón del de Mayo sn, esquina
Fuerte de Loreto, Col. Ejercito de Oriente, Delegación Iztapalapa, C. P.,
, Ciudad de México, Mexico,
Alejandro Zacarías,
ESIME
Azcapotzalco, Instituto Politécnico Nacional, Avenida de las Granjas No.
, Colonia Santa Catari Delegación Azcapotzalco, Ciudad de México,
Mexico,
V. H. Ferrer,
ESIME-Zacatenco,
Instituto Polit´ecnico Nacional, U.P. Adolfo López Mateos, Col. Lindavista,
Del. Gustavo A. Madero, Ciudad de México,,
René O. Vargas,
ESIME-Azcapotzalco, Instituto Polit´ecnico Nacional, Av. de las Granjas
, Col. Santa Catari Del. Azcapotzalco, Ciudad de México
Publication year - 2018
Publication title -
journal of applied fluid mechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.469
H-Index - 30
eISSN - 1735-3645
pISSN - 1735-3572
DOI - 10.29252/jafm.11.05.28323
Subject(s) - materials science , extrusion , crystallization , isothermal process , composite material , spinning , shear rate , melt spinning , fiber , work (physics) , newtonian fluid , shear thinning , thermodynamics , deformation (meteorology) , mechanics , viscosity , physics
In this work, the numerical simulation of the non-isothermal steady co-extrusion fiber spinning with flowinduced crystallization is explored. The model is based on the formulation originally proposed by China et al. in which Newtonian and Phan-Thien-Tanner (PTT) fluids are considered the core and the skin layer, respectively. The polymeric flow rate fraction, Deborah dimensionless number and the PTTs parameters on the temperature, the velocity and the crystallization profiles are analyzed. The numerical results show: the temperature profile is sensitive to the polymeric layer flow rate and the deformation parameters (shear thinning and extensional), the tensile stress induced crystallization parameter has a strong influence at the onset of the process, increasing drastically temperature and crystallinity.
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