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Non-isothermal viscoelastic numerical model of the cast-film process

Abstract : The cast-film process is widely used to produce synthetic (polymer) film for a large range of applications. Two geometrical defects contribute to decrease efficiency of this process: the width reduction (necking defect) and the inhomogeneous decrease of the thickness distribution (edge bead defect). In this paper, a numerical simulation of the process is performed to predict these defects. A membrane approximation is used to reduce the equations to a 2D model. The polymer flow is non-isothermal (heat transfer coefficient is discussed) and a viscoelastic constitutive equation is accounted for.
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Submitted on : Friday, February 24, 2012 - 2:48:51 PM
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Cyrille Sollogoub, Yves Demay, Jean-François Agassant. Non-isothermal viscoelastic numerical model of the cast-film process. Journal of Non-Newtonian Fluid Mechanics, Elsevier, 2006, 138 (2-3), pp.Pages 76-86. ⟨10.1016/j.jnnfm.2005.11.011⟩. ⟨hal-00673894⟩



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