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viscosity profile

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Old   April 1, 2021, 06:14
Default viscosity profile
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hello,

in the attached figure, we have the viscosity profile resulting from the flow of a Herschel-Bulkley fluid through an annulus with a moving inner pipe.
Fig.A is for a concentric case
Fig.B is for an eccentric case
My question, how to explain to the viscosity profile separation in case B as compared to case A.

Thanks in advance
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