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-   -   Fatal overflow in linear solver error. Why? (http://www.cfd-online.com/Forums/cfx/22625-fatal-overflow-linear-solver-error-why.html)

zaidun May 30, 2006 05:31

Fatal overflow in linear solver error. Why?
 
| ERROR #004100018 has occurred in subroutine FINMES. | | Message: | | Fatal overflow in linear solver.

hi i run my analysis using k-epsilon turbulence model and after 9 iterations, above error ocuured. i mesh my model in Gambit and using boundary layer as follows;

-first layer thickness = 0.0001 m -expnasion factor = 1.2 -layer = 20 layer

can anybody give me an idea..


Glenn Horrocks May 30, 2006 18:20

Re: Fatal overflow in linear solver error. Why?
 
Hi,

Your simulation has diverged. Look in the documentation under obtaining convergence.

Glenn Horrocks

prayskyer June 1, 2006 00:31

Re: Fatal overflow in linear solver error. Why?
 
this problem happened again to me!Is there any BC not apprcieate for me???i set pressure for inlet,and pressure for outlet ,is it allowed???

Brendan June 9, 2006 09:12

Re: Fatal overflow in linear solver error. Why?
 
As a quick fix: Did you try adjusting your timestep from automatic to manual?

Divide the recommended auto time step by 10^3 and try it again.


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