Axisymetric problem, help me!!
 

Hi,
I want model a stack with it's surroundings in Gambit and I want to use of axisymmetric boundary condition to decrease my calculation volume.

the boundary that is my axis is made of 3 line that have two different zones. when I run it in Fluent, it says that my model has a floating point!!!!!

what should I do?

I got it!

I make the x-axis my axis, it works!!! before the y-axis was my axis.
Why??????????

axisymmetrie needs to be on x-axis
And domain also needs to be on positive-(xy) plane
While exporting your mesh don't forget to enable 2d option