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clc;
warning("off");
printf("\n\n example4.5 - pg105");
// given
syms r;
ro=0.5; //[inch] - outside radius
ro=0.0127; //[m] - outside radius in m
Tg=2*10^7; //[J/m^3*sec] - heat generated by electric current
Tw=30; //[degC] - outside surface temperature
km=17.3; //[W/m*K] - mean conductivity
// using the formula T=Tw+(Tg/4*km)*(ro^2-r^2)
T=Tw+(Tg/(4*km))*(ro^2-r^2);
disp(T,"T=");
printf("\n where r is in meters and T is in degC");
function y=t(r)
y=Tw+(Tg/(4*km))*(ro^2-r^2);
endfunction
printf("\n\n at the centre line (r=0),the maximum temperature is %fdegC.At the outside ,the temperature reduces to the boundary condition value of %fdegC.The distribution i parabolic between these 2 limits",t(0),t(0.0127));
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