error in model heat transfer of bimetal blade
 

Hi:
I try to model heat transfer of bimetal blade in air circuit breaker, I simple the model,which include bimetal blade and a metal shell. I assume that electrify to bimetal blade , which build heat. In the model, Radiation and convection are considered. But the error appeared.

Warning: ST_Malloc: out of memory.malloc_storage: unable to malloc %s Velocity Prev Itn, size 33306552, t 3, myid 1000000.
Warning: ST_Malloc: out of memory.malloc_storage: unable to malloc Velocity SA, size 33306552, t 3, myid 1000000.
Error:
Out of memory in Resize_Vector_AMG_Chunk
Error Object: ()

Could you give me some advice?