mesh density

["ahmad_m_eid" <ahmad_m_eid@xxxxxxxxx>]

Dear all

thank you all for your help.

Still I have problems in force calculation.
you advise me to make several solution using mesh density. ok I made
but I don't know which one is good.
the stator (linear generator) of my problem is about 38 mm width x120
mm height with an air gap of 1 mm. If I use mesh of 1 mm so there will
be one triangular in the air gap al least and David Meeker sugessted
that when calculating the force you should be away from the object two
triagulars at least.
1- so, in my case if the air gap is 1 mm, what the suitable mesh size
density to take?

2- do you think that the block integral is better than the line
integral in calculating the force?

3- do you know any reference to calculate this force analytically?

thanks for your help.

ahmad