ANSYS Heatflow Negative Value Meaning

- June 22, 2019 at 7:44 pm
  
  jt2016
  Subscriber
  
  Hello.
  
  I am doing this problem but I do not understand what ANSYS 15.0 is telling me.
  
  Please see below for the full explanation.
  
  Thank you for your time and help.
- June 24, 2019 at 9:14 am
  
  Rob
  Ansys Employee
  
  Generally negative fluxes on a boundary mean material/energy is leaving the system. If you plot temperature how does it compare to the set temperature on that boundary?
- June 25, 2019 at 10:30 pm
  
  jt2016
  Subscriber
  
  Thank you for the response Mr. Rwoolhou.
  
  I listed the temperature on path 1 and one of the nodes had a temperature of 67.953 F (which is a little less than 68 F from the convection boundary). Would this mean that the heat flux is going into the concrete?
- June 26, 2019 at 10:36 am
  
  Rob
  Ansys Employee
  
  If the temperature on the outside is lower than on the inside heat will leave the domain. I don't know enough about Mechanical results to know if a single node would cause that: in CFD I'd look at area average temperature.
- June 26, 2019 at 7:47 pm
  
  jt2016
  Subscriber
  
  Thats okay. No worries. Thank you for the feedback.

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