For loop index exceeds array bounds

darkphotonix

2019 6 1

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Good Afternoon,

I'm having issues finishing my code I am getting an error, I slightly understand what it's asking but I don't have a clue on how to by pass it since my T_inf values are constant for all values of k within that j index.

This is my error

Index in position 2 exceeds array bounds (must not exceed 2).
Error in Project_IIIB (line 86)
    Tm_o(i,j,k) = T_inf(i,j) - e(i,j,k) .* (T_inf(i,j) - T_mi);

Anyway to fix it or move around it?

for k = 1 : 20
  V(i,j,k) = k + 19;
  %inside stuff
  Re_Di(i,j,k) = 4 .* mf ./ ( pi .* D(i) .* mu );
  NuDi_bar(i,j,k) = 0.023 .* Re_Di(i,j,k) .^ 0.8 .* Pr .^ 0.4 ;
  hi_bar(i,j,k) = NuDi_bar(i,j,k) .* k_i ./ D(i) ;
  %outside stuff
  Re_Do(i,j,k) = V(i,j,k) .* D(i) ./ sp_o(i,j) ;
  NuDo_bar(i,j,k) = 0.3 + (0.62 .* Re_Do(i,j,k) .^ (1 ./ 2) .* Pr_o(i,j) .^ (1 ./ 3)) .* (1 + (Re_Do(i,j,k) ./ 282000) .^ (5 ./ 8)) .^ (4 ./ 5) ./ ((1 + (0.4 ./ Pr_o(i,j)) .^ (2 ./ 3)) .^ (1 ./4));
  ho_bar(i,j,k) = NuDo_bar(i,j,k) .* k_o(i,j) ./ D(i);
  %Finding which one is closest to Tm,o
  U_bar(i,j,k) = ((1 ./ hi_bar(i,j,k)) + (1 ./ ho_bar(i,j,k))) .^ (-1);
  e(i,j,k) = exp(-((pi .* D(i) .* L) ./ (mf .* cp)) .* U_bar(i,j,k));
  Tm_o(i,j,k) = T_inf(i,j) - e(i,j,k) .* (T_inf(i,j) - T_mi);
  A = [T_inf(i,j); L(i) ; D(i)];
  if (T_mo - 0.1 < Tm_o(i,j,k)) && (T_mo + 0.1 > Tm_o(i,j,k))
    T_inf(i,j)
    Tm_o(i,j,k)
    D(i)
    L
  end
end

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dpb 2019-6-1

在 MATLAB Online 中打开

It's a loop indexing issue of the second index which is j in all of the subscripted variables in the code line but--you don't provide any code that shows the loop indices over anything excepting k so we can't know what those indices limits are...

Also, it doesn't show us which was the array it complained about so we don't know even whether it is one of the Txxx or the e array.

What does

whos T* e

show at the command line? That would tell us what dimensions the arrays have, at least, for a starting point.

Or, set a breakpoint on error and look in the debugger to see where you've addressing which array(s) outside their defined bounds.

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