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Combining CVFEM and meshless front tracking in Hele–Shaw mold filling simulation
Author(s) -
Estacio K. C.,
ato L. G.,
Mangiavacchi N.,
Carey G. F.
Publication year - 2008
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1732
Subject(s) - finite element method , mechanics , finite volume method , viscosity , newtonian fluid , isothermal process , front (military) , mathematics , physics , thermodynamics , mechanical engineering , engineering
Abstract In this work, a generalized Hele–Shaw approach is developed for non‐isothermal, non‐Newtonian and inelastic flows arising in injection molding. The advancing free surface of the injected fluid is predicted by a novel meshless front‐tracking method coupled to control volume finite element solution for the pressure. A modified Cross constitutive model with Arrhenius temperature dependence is employed to describe the viscosity of the melt and the temperature field is solved by a semi‐Lagrangian scheme with a finite volume method. The utility of the combined algorithm is demonstrated for a test problem that has complex ‘obstacles’ in the mold interior. Copyright © 2008 John Wiley & Sons, Ltd.