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Flow 3D Cast simulation Error: Fluid volume error exceeds 5%

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Old   August 1, 2017, 12:03
Default Flow 3D Cast simulation Error: Fluid volume error exceeds 5%
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Santosh Reddy
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In many of my simulations in Flow 3D Cast, I am observing following error and mentor tip but I have no idea how to implement the suggested changes. Any kind of help to solve this issue is appreciated.

convective flux exceeded stability limit at t= 5.0192E-03 cycle= 26 iter= 17 delt= 2.7720E-04 mesh block 1
restarting cycle with smaller time step
3.02227E-02 163 2.32E-04 2.32E-04/cz 6 4.57E-01 5.9800E-06 +1.83E-01 0.02 0.0000E+00 0.00 00:00:07 94 11:57:45 00:08:04
6.04859E-02 277 3.29E-04 3.29E-04/cz 4 5.67E-01 1.1609E-05 +2.11E+00 0.03 0.0000E+00 0.00 00:00:10 87 11:57:48 00:06:08
9.05542E-02 368 3.53E-04 3.53E-04/cz 9 7.92E-01 1.6953E-05 +4.40E+00 0.04 0.0000E+00 0.00 00:00:13 90 11:57:51 00:05:33


============= mentor tip ===============
fluid volume error exceeds 5%.
1. tighten convergence epsadj.
2. reduce time-step size tdtmax.
3. reduce rcsql compressibility.
4. is there excessive fluid break up?
========================================


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