[jadnakhl]

[Hello sorry disturbing but i posted earlier and no one answered.
If anyone can tell me how should i draw an expanding circular pipe without getting an error in the setup if want to make a line in the drawing as centerline and by putting the problem type as axisymmetric.

[LuckyTran]

This is a meshing problem, not really a Fluent problem.

You need to generate a 2D mesh that represents your problem. Then you simply specify the centerline as the axis-type boundary condition in Fluent.

My question is, what's your favorite meshing program? The very first ICEM tutorial will show you how to make a 2D box, you can fairly easily make that into an expanding pipe I think.

[jadnakhl]

Hello, first thank you for answering..
But if you can explain a little bit for how i should transform a box to an expanding pipe. Because i know that i can transform a box to a regular circular by putting the lower or the upper boundary as axis w and the type as axisymmetric. But the problem is how to draw a box with an inlet and a step right under the inlet.

[LuckyTran]

Don't transform it. Simply draw it.

[jadnakhl]

How should i draw it in the geometry in ansys fluent that's my point.. How should i draw a rectangle by dividing it's left side into an inlet and a step below and putting the upper vertical side as a centerline and type axis and the type of problem axisymmetric without getting an error.