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Finite element analysis of dip coating with bingham fluids
Author(s) -
Hurez P.,
Tanguy P. A.
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.760301803
Subject(s) - bingham plastic , discontinuity (linguistics) , finite element method , viscoplasticity , classification of discontinuities , smoothing , non newtonian fluid , materials science , mechanics , newtonian fluid , augmented lagrangian method , flow (mathematics) , rheology , mathematics , mathematical analysis , mathematical optimization , physics , thermodynamics , constitutive equation , composite material , statistics
A finite element analysis of the dip coating process with Bingham fluids is presented. The solution method for the viscoplastic flow problem was based on the augmented Lagrangian method allowing a rigorous treatment of the stress discontinuity. To compute the location of the free surface at equilibrium, an iterative method was used based on the arbitrary Eulerian‐Lagrangian approach in conjunction with mesh smoothing. Numerical predictions were validated against experimental data for the Newtonian limit case. Computations were then performed with Bingham fluids. The influence of yield stress on the meniscus flow Is discussed.