Physics, 09.10.2019 03:00 Shadowhawk681
Aconcentric cylinder viscometer may be formed by rotating the inner member of a pair of closely fitting cylinders (see fig). 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 0.001 in., filled with castor oil at 90°f. determine the torque required to turn the inner cylinder at 400 rpm.
Answers: 3
is torque acting on cylinder
is kinematic viscosity, for castor oil at 90 degree F = 0.259 N s/m^2
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Aconcentric cylinder viscometer may be formed by rotating the inner member of a pair of closely fitt...
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