Browsing by Subject "Extrusion instabilities"
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Article
On numerical simulations of polymer extrusion instabilities
(2002)The objective of this study is mainly to review recent work concerning the numerical modeling of the stick-slip and gross melt fracture polymer extrusion instabilities. Three different mechanisms of instability are discussed: ...
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Article
A timestepper approach for the systematic bifurcation and stability analysis of polymer extrusion dynamics
(2008)We discuss how matrix-free/timestepper algorithms can efficiently be used with dynamic non-Newtonian fluid mechanics simulators in performing systematic stability/bifurcation analysis. The timestepper approach to bifurcation ...