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-   -   Time step too small in stiffbs (https://www.cfd-online.com/Forums/fluent/46083-time-step-too-small-stiffbs.html)

Zhigang Hu September 19, 2007 22:59

Time step too small in stiffbs
 
Hi, everyone. The following message appears when I activate the heat mass coupling in DPM panel. "Time step too small in stiffbs:

dt = 8.537147e-021, t = 0.000000e+000

0 y = 7.000001e-006 dy/dt = 0.000000e+000

1 y = 1.000000e+020 dy/dt = 0.000000e+000"

Can you explain it?Thank you very much!

Zhigang Hu

Zhigang Hu September 22, 2007 06:55

Re: Time step too small in stiffbs
 
HELP!HELP!HELP!HELP!HELP!HELP!


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