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// A Textbook of Fluid Mecahnics and Hydraulic Machines - By R K Bansal
// Chapter 1-Properties of Fluid
// Problem 1.17
//Given Data Set in the Problem(SI Units)
d=15/100
d_outer=15.10/100
l=25/100
T=12
N=100
//Calculations
u_tang=%pi*d*N/60
Area_surface=%pi*d*l
du=u_tang-0
dy=(d_outer-d)/2
//We know, Shear stress=Force/Area=viscosity*(Velocity Gradient)
//also, Torque=Force*Diameter/2.......or.. Force=(Torque*2)/Diameter
//hence, 2*Torque/(diameter*area)=Viscosity*(Vel. gradient)
visc=2*T/(d*Area_surface*du/dy)
mprintf("The Viscosity of the liquid is %f poise",visc*10)
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