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///Chapter No 7 Fluid Mechanics
////Example 7.7 Page No:117
///Find Density of oil
///Input data
clc;
clear;
A=6*10^-2; //Space between two square plates in mm
dy=8*10^-3; //Thickness of fluid in mm
u1=0; //Lower pate is stationary
u2=2.4; //Upper plate in m/s
F=5; //Speed of force in N
s=1.6; //Specific gravity of the liquid
dow=1000; //Density of water Kg/m**3
//(1)Calculation
du=u2-u1; //change in velocity in m/s
tau=F/((A)^2); //shear stress N/m**2
mu=tau/(du/dy); //Newton's law of viscosity in Ns/m**2 or poise
rho=s*dow; //Density of oil in kg/m**3
v=mu/rho; ///kinematic viscosity is given by m**2/s or stoke
///Output
printf('change in velocity=%f m/s \n ',du);
printf('shear stress=%f N/m^2 \n ',tau);
printf('Newtons law of viscosity=%f Ns/m^2 \n',mu);
printf('Density of oil=%f kg/m^3 \n ',rho);
printf('kinematic viscosity=%f m^2/s ',v);
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