how to create a loop in simulink for runoff model

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i have data of one year and i need to calculate runoff for each day of the day and the equation is as follows: rainfall + storage - evaporation - infiltration = runoff for 1st day and
for second day runoff, equation changes as follows:
rainfall on 2nd day + infiltration of 1st day is storage of 2nd day - evaporation on 2nd day - infiltration on 2nd day = runoff on 2nd day

Answers (1)

Rhea Chandy
Rhea Chandy on 1 Mar 2021
Hi Poornima
If you are asking how to implement a for loop inside the model, there is a "For Iterator Subsytem" to repeats the execution in a time step.
Are you having difficulty building the model itself? If you aren't sure where to start because you're not familiar with how to model in Simulink, I suggest you start with the Simulink Onramp tutorial ( to quickly learn the essentials.
If you can give some more information on where you are facing difficulties in your model, we may be able to give you more specific help.


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