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non newtonian power law

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Old   October 4, 2005, 09:21
Default non newtonian power law
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dana mahfouz
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hello

i am working on the modelisation of polyacrylamide non newtonianne polymer flow in a circle. i define the viscosity of polymer by non newtonian Power law where i give k 0.3012 n 0.43 T0 0 mu min 0.009 mu max 0.034 and the radius of my circle is 150 m.

well my problem is that the polymer doesnt spread out well enough at the wall of my circle it falls all the time . i will be glad and thankful if you can help me to figure out what to do to make the mixture spread out uniformly on the wall of the circle . for the boundary condition i give a moving wall rotating at 100 m/s thanks alot

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