computation messages.

[Hazard]

Hi,
During Unsteady flow analysis, computation messages are like that

Performaing Unsteady Flow Simulation version 3.1.3 May 2005

*****Matrix Solution Failed*****

Minimum error exceeds allowable tolerance at 26DEC2006 0100

Bent Yankol 242

Writing results to DSS
Finished Writing Result to DSS

Reading Data for Post Process

Simulation went unstable at: 26Dec2006 01:10:00
Resetting post process profiles to end at: 26Dec2006 0100

Anyone has an idea, what do they mean?
Thanks
Best Regards.

Hasan

[Amnistan]

i had the same messages. try to ajust your computation options and tolerance by increasing the watersurface calculation tolerance and by reducing the computation interval. i hope it will work.