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Article | REF: AM3655 V1

Modeling flow in extrusion dies

Authors: Bruno VERGNES, Jean-François AGASSANT

Publication date: July 10, 2008, Review date: January 10, 2019

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4. Solving methods

It is not our intention to go into detail about the calculations and numerical methods used to deal with the equations of stream flows. For the two main types of flow discussed in the previous paragraph, we'll confine ourselves to presenting the general philosophy and broad outlines of the various methods.

4.1 One-way flows

Let's take the case of the tube die described in figure 3 . Locally, the flow geometry is defined by the inner R 1 (z ) and outer R 2 (z ) radii (figure

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