My problem is the conduction and the convection for the faces that i select do not show the small triangle thing. you can refer the first photo which it has the small triangle after the faces selected for conduction/convection. my model at the second photo is the one that having the problem. appreciate your help. thank you


Hi Adib,
It is possible the contact direction for the conduction group was reversed and pointing in the other direction?
If so, you may have found you can select the elements in the conduction group and adjust the contact direction to more easily view by selecting element faces and clicking reverse.
Thanks,
Rob H.