(adsbygoogle = window.adsbygoogle || []).push({}); 1. Ok I have to build a real life wave-maker for my Final Year Project(FYP). My wave-maker design is as shown below:of the motor before I order it. I start out by calculating the force needed to move the water using the flap paddle.The equation I have applied is:

http://img696.imageshack.us/img696/5888/drawntank.png [Broken]

The proffessor said I need to be able to calculate thetorque

Water's Volume = length*breadth*height = (1.23)*(0.57)*(0.45) = 0.3155 meter^3

The torque is

t = r*f*sin(theta)

r = 0.35m

theta = 10 degree

f = ??

I know Force = m*a

m = water's volume in this case = 0.3155 meter^3

but what is the acceleration, "a" here though??

The spring is there to keep the flap paddle in neutral positon when the water is quiet.

So my question is: How would I determine the minimumforcethat I need to drive the paddle? And how would I go from there to determine the torque that my motor would need to move the paddle??

Sorry if this seems a bit messy, first time poster

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Need help in relating force needed to drive mass of water.

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