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From: Durga Lal Shrestha on 21 Dec 2009 11:09
Dear all

I am very new to Simulink. I am trying to build a Simulink for rainfall runoff model. The following is the example of one of the submodel to be built.

FC=150; % Constant parameter
Beta = 1.2; % Constant parameter
nTime = 365; % Number of time steps
%P = rand(nTime,1); % input to the system
load inputP % loading input P of the system
Sm = zeros(nTime,1); % Soil moisture, state variable
R = zeros(nTime,1); % Output from the system (to be simulated)
Sm(1) = 100; % Initial state of the soil moisture
for t=1:nTime
R(t)=P(t).*((Sm(t)/FC)^Beta); % R(t) is output from the system
Sm(t+1)=Sm(t)+P(t)-R(t); % Update of the state
end

I am sure that this can be done very easily in simulink. I am wondering if somebody can help me to build my first simulink model. Thank you very much in advance.

Durga
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