Vehicle Simulation with Rotating Wheels

Natalia Castro Naranjo · May 14, 2012, 11:32

Good Morning to all.

I have been working on a rotating wheel vehicle simulation. First, I did some simulations of the whole vehicle without rotating wheels and they converged giving reasonable results. Then I just put the wheel to rotate in a free environment (without the wheel well) and again it converged and gave reasonable results.Anyways, when I try to join both things the simulation diverges.

I have tried to refine the mesh inside the wheel well (although I don´t know if it is still to coarse)and it hasn´t worked. I have even tried to simulate 1/4 of the car (just to check on convergence) but it still diverges.

I cut the wheel on its bottom a little bit to make the simulation more real. The body on the wake is just an aid for a mesh refinement. My mesh is no dynamic. I just put a condition in the wheel of a rotating wall which is congruent with a moving floor.

I would appreciate very much if someone could give me a hint.

Thank you very much,

Natalia Castro Naranjo · May 14, 2012, 11:39

http://postimage.org/image/8mwj2dwud/dcdc4148/

Here is a link to visualize geometry.

May 14, 2012, 11:32	Vehicle Simulation with Rotating Wheels	#1
Natalia Castro Naranjo New Member Natalia Castro Join Date: May 2012 Posts: 2 Rep Power: 0	Good Morning to all. I have been working on a rotating wheel vehicle simulation. First, I did some simulations of the whole vehicle without rotating wheels and they converged giving reasonable results. Then I just put the wheel to rotate in a free environment (without the wheel well) and again it converged and gave reasonable results.Anyways, when I try to join both things the simulation diverges. I have tried to refine the mesh inside the wheel well (although I don´t know if it is still to coarse)and it hasn´t worked. I have even tried to simulate 1/4 of the car (just to check on convergence) but it still diverges. I cut the wheel on its bottom a little bit to make the simulation more real. The body on the wake is just an aid for a mesh refinement. My mesh is no dynamic. I just put a condition in the wheel of a rotating wall which is congruent with a moving floor. I would appreciate very much if someone could give me a hint. Thank you very much,

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May 14, 2012, 11:39		#2
Natalia Castro Naranjo New Member Natalia Castro Join Date: May 2012 Posts: 2 Rep Power: 0	http://postimage.org/image/8mwj2dwud/dcdc4148/ Here is a link to visualize geometry.