CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Temperature problem (http://www.cfd-online.com/Forums/fluent/93430-temperature-problem.html)

shubhankar.kulkarni55 October 15, 2011 10:48

Temperature problem
 
Hi everyone!

I am having a problem of temperatures shooting up to a very high value after specifying 'source terms' or 'heat flux' value. The calculated values are verified. I also tried reducing the source term values, still the temperatures are not decreasing. Any suggestions?

Thanks!!

sabin October 17, 2011 06:11

Do following checks

1)make sure that units are consistent.
2) Check thoroughly value of Cp, k
3) If there is phase change in actual case apply 'limit' at that temp in Fluent.

Fluent will obey energy balance pretty accurately ..All the best :)

shubhankar.kulkarni55 October 17, 2011 06:50

Thanks!
 
Thanks a ton for your reply.

I am using the standard material database available in Fluent and also there is no phase change in the problem. I have tried reducing the source term value by 10 times, still the temperatures are not coming to be accurate! Please let me know if there can be any other problem! :confused:

Thanks again!

sabin October 17, 2011 07:02

Fluent database properties are defined for NTP. If your operating condition is different properties will be different. Check for that.


All times are GMT -4. The time now is 13:30.