关于vof问题求助

chjj

我在计算vof问题时老是出现不收敛的情况,甚至是按照实例做也收敛不了,计算时总弹出
reversed flow in 12 faces on pressure-inlet 3.
到最后就是
reversed flow in 12 faces on pressure-inlet 3.
turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 270 cells
   300 1.2030e+05 4.0408e-01 5.3145e-02 4.7433e-01 3.2231e-01 9.1254e-01  0:00:00    0
Flow time = 0.030000001, time step = 15
985 more time steps
Updating solution at time level N...
Error: Too many  (11737) VOF sub-timesteps. The velocity
field is probably diverging. Please check the solution,
and reduce the time-step if necessary.
Error Object: ()
Interrupting...
Done.
这是什么原因有人能告诉我不?
对了我用的fluent6.1版本