Learning Forum

[Sampat Kumar]

Hi Ji,
You can follow the attached link to learn how to select the different surfaces in the Mechanical with the APDL command snippet. 

https://forum.ansys.com/forums/topic/convection-coefficient-on-a-specifique-side-of-a-surface-bogy-shell/

Let me know if you face any issues 

Regards,
Sampat