An Effective Interface Tracking Method for Simulating the Extrudate Swell Phenomenon
نویسندگان
چکیده
منابع مشابه
Description of Extrudate Swell for Polymer Nanocomposites
Extrudate swell is often observed to be weakened in nanocomposites compared to the pure polymer matrix. A theory quantifying this would be significant either for optimum processing or for understanding their viscoelasticity. A unified extrudate swell correlation with material properties and capillary parameters was suggested for polymer melt and their nanocomposites when considering the reservo...
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Article history: Received 14 August 2014 Received in revised form 22 March 2015 Accepted 2 April 2015 Available online 22 April 2015
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Influence of convective cooling at the extrudate’s free surfaces on its own swelling behaviour is examined numerically when viscous fluids of a Newtonian type are extruded. In circular die extrusion, increasing the surface heat transfer coefficient h increases extrudate’s thickness swell at low Nahme-Griffith number Na; at high Na, however, this trend tends to be reversed. With annular dies, a ...
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ژورنال
عنوان ژورنال: Polymers
سال: 2021
ISSN: 2073-4360
DOI: 10.3390/polym13081305