Wind collecting system with Strandbeest

Hello, this is my first time to ask question on this webpage.

I made Theo Jansen's strandbeest but only the leg part.

So far it moves with timer and C# but I need to simulate wind collecting system for the engine.

I heard that we can make wind simulating system using kangaroo but I only can use grasshopper.

So far I made easy propeller and tried to make the movement into numbers and connected to the first C#, but it did not work...

Well, I only have 2 more hours to complete this exercise (I wanted to ask this earlier but it took time to activate my account...) so I need to get answer immediately...

Thank you for your cooperation.