As it appears, the time step is too small which cause the result does not converge. Go to Numerical, double click the numerical controls, increase your time step see if it works. Sorry that I cant type Chinese here.
请放开那位大婶 发表于 2012-5-23 03:05
As it appears, the time step is too small which cause the result does not converge. Go to Numerical, ...
ok, I have changed the time step, even i define it as 1d(I think it big enough), but it doesn't make sense.There's sth wrong with convergency. Many parameters can cause this problem ,i don't know which to be corrected