Simulink algebraic loop Error

Hi there

I am trying to make a simulation of sailing boat mechanics but have hit a bit of a brick wall. I have an equation to find the speed of the boat given certain wind speed and angle of wind relative to the boat. what i would like to do is loop this so that it feeds the new speed into the function, using the initial speed(constant) to begin with but the outputted variable there after.

I am very new to matlab and simulink so i apologize for my lack of knowledge, but as far as i can tell simulink really does not like algebraic loops and i cant think of a way to program it in without it breaking.

Any help would be much appreciated

Answer 1

[A Jenkins]

Use a memory or unit delay block to break the loop. Double click on it to set your initial speed at time 0.