Equation of Motion of flapping airfoil in sixDoFRigidBodyMotion

amirkhan5997 · April 21, 2024, 19:38

Hello FOAMers

I am trying to simulate a flapping foil that moves due to forces of incoming flow. There are equations of motion that has to be solved which gives the velocities and displacement which governs the motion of the foil (see the pictures) .

My question is how to make these equations solve using the lift and moment data from the fluid solver and move the foil accordingly? Do I have to make a new restraint or is there a way of using the ODEsolvers RKF45 for this purpose is their another more efficient way. Thank you

Screenshot 2023-08-21 003726.png

Screenshot 2024-04-22 031300.png

dthakur · November 11, 2024, 11:02

are you able to solve this thing in open foam? because i am doing the validation and i need help in that too. if you solved this thing could you please share with me would be highly appreciated.

April 21, 2024, 19:38	Equation of Motion of flapping airfoil in sixDoFRigidBodyMotion	#1
amirkhan5997 New Member Amir Khan Join Date: Jan 2023 Posts: 5 Rep Power: 3	Hello FOAMers I am trying to simulate a flapping foil that moves due to forces of incoming flow. There are equations of motion that has to be solved which gives the velocities and displacement which governs the motion of the foil (see the pictures) . My question is how to make these equations solve using the lift and moment data from the fluid solver and move the foil accordingly? Do I have to make a new restraint or is there a way of using the ODEsolvers RKF45 for this purpose is their another more efficient way. Thank you Screenshot 2023-08-21 003726.png Screenshot 2024-04-22 031300.png

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November 11, 2024, 11:02		#2
dthakur New Member Dilip Join Date: Sep 2024 Posts: 7 Rep Power: 2	are you able to solve this thing in open foam? because i am doing the validation and i need help in that too. if you solved this thing could you please share with me would be highly appreciated.