A concentric cylinder viscometer may be formed by rotating

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Reference no: EM13624207

A concentric cylinder viscometer may be formed by rotating the inner member of a pair of closely fitting cylinders. The annular gap is small so that a linear velocity profile will exist in the liquid sample. Consider a viscometer with an inner cylinder of 4 in. diameter and 8 in. height, and a clearance gap width of .001 in., filled with castor oil at 90 degrees F. Determine the torque required to turn the inner cylinder at 400 rpm.

Reference no: EM13624207

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