ANSYS WORKBENCH CFX双向流固耦合求解失败

小弟最近用ANSYS WORKBENCH CFX双向流固耦合，求解失败，这个错误出现了N+次了，崩溃了，希望各位大神帮助，，提示如下：This run of the CFX-14.5 Solver started at 08:56:43 on 16 Feb 2015 by
user Administrator on PC201308051525 (intel_xeon64.sse2_winnt) using
the command:
"D:\Program Files\ANSYS Inc\v145\CFX\bin\perllib\cfx5solve.pl" -batch
-ccl runInput.ccl -fullname "Fluid Flow CFX_019"
Setting up CFX Solver run ...
+--------------------------------------------------------------------+
| |
| Processing ANSYS Input File (Running CCL2MF) |
| |
+--------------------------------------------------------------------+
Created
C:\Users\Administrator\Desktop\practice\15-2-14\15-2-14_pending_tasks\-
dp0_CFX_Solution_1\Fluid Flow CFX_019.ansys\ANSYS.mf
+--------------------------------------------------------------------+
| |
| Starting ANSYS Solver |
| |
+--------------------------------------------------------------------+
+--------------------------------------------------------------------+
| An error has occurred in cfx5solve: |
| |
| ANSYS Solver terminated unexpectedly with return code 3840 |
+--------------------------------------------------------------------+
+--------------------------------------------------------------------+
| Warning! |
| |
| After waiting for 60 seconds, 1 solver manager process(es) appear |
| not to have noticed that this run has ended. You may get errors |
| removing some files if they are still open in the solver manager. |
+--------------------------------------------------------------------+
This run of the ANSYS CFX Solver has finished.