surf function plotting temperature

The question is: Use Matlab to plot the temperature distribution in the slab, T(x,y)using 50terms of the series solution. Use the “surfc” command to plot the distribution as a surface with a contour map underneath. If you were going to put up asafety barricade, where would you recommend putting it?

My already generated equation is the Cn I have in the code. For some reason nothing is plotting though, any help? My code is below:

clear;

clc;

L = 25; % in m

W = 100; % in m

k = 0.5; % in W/mK

qs = 20; % in W/m2

N = 50;

T = zeros(N);

for c = 1:N

Cn = ((2*qs*L)/(k*(3.14^2)))*(((-1)^(c+1)+1)/((c^2)*cosh(c*3.14*W/L)))*sin(c*3.14*W/L)*sinh(c*3.14*W/L)

surf(T, Cn)

xlabel('Temperature')

ylabel('Cn Values')

title('Temperature v Cn Values')

end

Answer 1

[Star Strider]

The surf function requires either one or three arguments, if three the first two are either vectors or matrices of the independent variables and the third is a matrix of the dependent variable.

Also, in the ‘Cn’ calculation, it is necessaary to use element-wise operations. See the documentation section on Array vs. Matrix Operations for details on that.