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clear;
clc;
printf('FUNDAMENTALS OF HEAT AND MASS TRANSFER \n Incropera / Dewitt / Bergman / Lavine \n EXAMPLE 9.1 Page 569 \n'); //Example 9.1
// Boundary Layer thickness at trailing edge.
//Operating Conditions
Ts = 70+273; //[K] Surface Temperature
Tsurr = 25+273; //[K] Surrounding Temperature
v1 = 0; //[m/s] Velocity of free air
v2 = 5; //[m/s] Velocity of free air
L = .25; //[m] length
//Table A.4 Air Properties T = 320 K
uv = 17.95*10^-6; //[m^2/s] Kinematic Viscosity
be = 3.12*10^-3; //[K^-1] Tf^-1
Pr = 269; // Prandtl number
g = 9.81; //[m^2/s]gravitational constt
Gr = g*be*(Ts-Tsurr)*L^3/uv^2;
del = 6*L/(Gr/4)^.25;
printf("\n Boundary Layer thickness at trailing edge for no air stream %.3f m",del);
Re = v2*L/uv;
printf("\n\n For air stream at 5 m/s As the Reynolds Number is %.2e the free convection boundary layer is Laminar",Re);
del2 = 5*L/(Re)^.5;
printf("\n Boundary Layer thickness at trailing edge for air stream at 5 m/s is %.4f m",del2);
//END
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