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Objective:To determine the viscosity of three liquids using a Stormer Rotating Cylinder Viscometer. Thedynamic viscosity is calculated using the velocity gradient between two plates and making anapproximation for a cylinder.budydubrdydu2Results:M= 4.61 x 10-2kga= 0.0287 mr1= 0.0319 mr2=0.04781 mD= 0.007955 mL= 0.0145 mN(number ofrevolutions)t(s)(cP)(gmL)(cSt)Solution 194.514.114.15 x 10-42.131.95 x 10-4Solution 291.511.053.35 x 10-42.101.60x 10-4Solution 393.516.114.79x 10-42.182.19 x 10-4
=NLDagM2318rWhere:= dynamic viscosity (kg/m.s).M= mass of weight (kg).g= gravitational acceleration (9.812sm).a= radius of wound drum (m).D=(r2– r1)that is the gap between the inner and outer cylinders (m).L= length of the inner cylinder submerged in solution (m).