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polymer boundary layer

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Old   March 28, 2012, 21:21
Default polymer boundary layer
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Minjae Lee
Join Date: Mar 2012
Location: South Korea
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Hello, I am solving the polymer extrusion problem.
I have a question that is the boundary layer of the polymer extrusion.

The polymer metarial is sliding on the wall, then do I have to making the boundary layer?

I do not think so, because the polymer has very high viscosity.
The Reynolds number is less then 1.(Re<<1)
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