Hi Vishnuvardhan,
I understand that you are trying to implement a “for” loop as a MATLAB function into Simulink.
When working with iterative computations in Simulink, the best approach is to use a “MATLAB Function” block, which allows you to embed MATLAB code into the Simulink model.
Refer to the following steps for the same:
1. Open Simulink and create a new model.
2. Add a “MATLAB Function” block from the Simulink Library.
3. Replace the existing code in the block with the following function:
function W = for_loop_simulink(n, P_in, P_out, T_in, kappa, M)
% Initialize arrays
P = zeros(1, n+1);
T = zeros(1, n);
running = zeros(n,1);
% Set initial values
P(1) = P_in;
CR = (P_out/P_in)^(1/n);
% Compute pressure values
for i = 2:n
P(i) = CR * P(i-1);
P(i+1) = CR * P(i);
end
% Compute temperature values
for i = 1:n-1
T(i) = ((P(i+1)/P_in) * (T_in^(kappa/(kappa-1))))^((kappa-1)/kappa);
T(i+1) = ((P(i+1)/P(i)) * (T(i)^(kappa/(kappa-1))))^((kappa-1)/kappa);
end
% Compute running sum
for i = 1:n
running(i) = ((P(i+1)/P(i))^((kappa-1)/kappa));
end
% Compute final result
W = (kappa * M) / (kappa-1) * ((sum(running)) - n);
end
Here, the inputs are “n”, “P_in”, “P_out”, “T_in”, “kappa”, “M” and the output is “W”.
4. Now, connect input signals to the “MATLAB Function Block”.
5. Finally, run the simulation and verify the output obtained.
This method allows you to efficiently implement the required “for” loop logic inside Simulink.
For further reference about MATLAB Function block, refer to the official MATLAB documentation below:
