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-   -   AMG solver error (http://www.cfd-online.com/Forums/fluent/50704-amg-solver-error.html)

Rishikesh February 27, 2009 05:04

AMG solver error
 
hi all

i am simulating air-kerosene mixing in a scramjet combustion chamber.

i am getting an error as shown below

Error: divergence detected in AMG solver: temperature

what is the reason and what is the rectification which needs to be done?

thanks!

Rishikesh

sathees kannan February 27, 2009 05:38

Re: AMG solver error
 
try tuning under relaxation factor

Rishikesh February 27, 2009 06:24

Re: AMG solver error
 
tuning means increase or decrease?

thanks

Rishikesh

Ralf Schmidt February 27, 2009 07:18

Re: AMG solver error
 
Hi!

solve your flow field first without turbulence model, without energy equation or other models (combustion).

Then subsequent turn each model on...

Ralf


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