invalid argument
 

I am working on the simulation of drug release from microsphere (3D) by fluent 5.5. All the parameters work very well in 2D simulation. But in 3D, the fluent will abort at first several time steps and show ¡°Error: > (greater-than): invalid argument [2]: wrong type [not a number] Error object: nano*7fffffff¡± ¡±.

What is the problem suppose to be: Gambit model? Boundary condition? Or anything else.

Your timely assistant will be highly appreciated!