# [ANSYS Meshing] Divergence in Transient solver

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 July 16, 2013, 12:48 Divergence in Transient solver #1 New Member   Join Date: Dec 2012 Posts: 13 Rep Power: 5 Hello guys, I've been trying to model a 2D vertical axis wind turbine using a transient solver. I had a tutorial which helped me a lot set up my problem and my code which defined the motion of the blade. The blade motion is defined by the equation of motion of of a four bar linkage. I can preview the mesh motion, which is what i need. The problem is that the solution diverges after only 10 iterations ! Do you reckon it's a problem from my code? (but the mesh motion is correct), or the mesh itself(which i highly suspect) or maybe the setup! (what is usually a key factor contributing to divergence in transient solvers) Many thanks

July 17, 2013, 03:22
#2
Senior Member

Matthias Voß
Join Date: Mar 2009
Location: Berlin, Germany
Posts: 446
Rep Power: 12
hi,
could be anything actually.
Quote:
 Originally Posted by Elio I've been trying to model a 2D vertical axis wind turbine using a transient solver.
Which one?
Quote:
 Originally Posted by Elio The problem is that the solution diverges after only 10 iterations !
What is diverging? How is the setup?
How do you know the mesh motion is correct? Remeshing? Morphing?

matthias

P.S.: try to solve ONLY for the mesh motion without any u,v,w,p,eps,...

 Tags 2d airfoil mesh, transient convergence

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