网格划分后,运行提示:* v! d5 L2 l3 T- v: e' v
PCG iterative solver stopped 6 l( t& o( ?2 u" sstatus code :9MATRIX_SINGLUAR_OR_INDEFINITE7 k' @8 j$ L' y. I( E1 J
May not have adequate restraints.- g. D5 y! ]3 F+ C4 |; ]
No result saved. 5 V$ j/ V( q7 J# |0 y* _5 _! X) m. k' M, p: g4 ?
不知是何原因出错,请高手提点!