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hirota September 2, 2021 05:46

How to add Body force to a simple propeller model
 
Hello everyone.

What I am currently trying to do is to study the flow around the hull taking into account the rotation of the propeller.

I think that calculating the propeller and hull as a single unit is very costly and unrealistic.

Therefore, we are considering alternative methods. The methods we are currently considering are

1. First, we calculate the propeller alone in a uniform flow.
2. Next, together with the hull model, we will place a simple propeller model (disk shape?) in place of the complex propeller model. Instead of the complex propeller model, place a simple propeller model (disk shape?) in its original location.
3. Based on the result of step 1, a volume force is added to the simple propeller model (disk shape?). I would like to add the volume force to the simple propeller model (disk shape?) and calculate around the hull.

Currently, I have completed the calculations in step 1 using both AMI and MRF methods, and I am wondering at what point to add the volume force.
What methods exist for approaching this in openfoam?

I'm using OpenFOAM-4.x.


I feel that this is a difficult problem that I cannot solve without your help.
Thank you very much for your help.


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