Learning Forum

[Mahmut Han Neşeli]

I want to analyze the heat change in the lower part when the rod in the upper part is heated, but the temperature remains constant. How can I do it?
When I apply coupling, I get an error.

Ansys 18.2

[peteroznewman]

Use a Radiation boundary condition.  Take the free courses to learn how to use it.

/courses/wp-content/uploads/sites/2/2020/05/Lesson-1-Intro-to-Thermal-Radiation.pdf

/courses/index.php/courses/radiation-in-heat-transfer/

/courses/index.php/courses/radiation-between-surfaces/

 

[Mahmut Han Neşeli]

 

”I did what you said, but this time the results are very different. The outside temperature should be lower, but it’s coming out higher. Can you help? 

 

[peteroznewman]

Show the details for each of the three boundary conditions.

Is there air in contact with the lower sheet? Is the air enclosed or is there a room full of fresh air that can come in at the same low temperature to cool the lower sheet? If you have a room full of fresh air, then you should add a convection boundary condition.

Without a convection boundary condition, the faces of the sheet can't be cooled so the final temperature will be the same as the upper part.

Take the free courses on Convection Heat Transfer.

/courses/index.php/courses/heat-transfer/

/courses/index.php/courses/thermal-convection-in-heat-transfer/

/courses/wp-content/uploads/sites/2/2021/02/S1LT4C4L5-Handout-v1.pdf

[Mahmut Han Neşeli]

I finally succeeded. Thank you very much for your help.