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+clc;
+clear all;
+disp("Laminar flow over plate")
+
+L=5;//m plate length
+w=2.5;//m plate width
+
+x=1.2;//m distance from the leading edge of plate
+v=15.4*10^(-6);//m^2/s kinematic viscocity
+U=4;//m/s velocity of air
+rho=1.208;//kg/m^3 density of air
+v=1.47*10^(-5);//m^2/s kinematic viscosity of air
+
+Re=5*10^5;// Reynold's number
+x=Re*v/U;// length of plste over which boundary layer is laminar
+disp("m",x,"length of plste over which boundary layer is laminar =")
+delta=5*x*1000/(Re)^0.5;//mm
+disp("mm",delta,"thickness of boundary layer =")
+Cfx=0.664/(Re)^0.5;
+disp(Cfx,"drag coefficient =")
+tau=Cfx*0.5*rho*U^2;// shear stress
+disp("N/m^2",tau,"Shear stress =")
+Cf=1.328/(Re)^0.5;
+A=x*w;//m^2 area of plate
+Fd=2*Cf*0.5*rho*A*U^2;
+disp("N",Fd,"Total drag force on both sides of plate, =")
+