How to define a 2-D surface in a 3-D geometry?

amir2920 · November 20, 2012, 19:32

Hello,

I am Using Ansys 14.0. I want to define a surface (a circle) on my 3-d geometry. But the design modeler software needs thickness and does not creates a surface in a 3D geometry. I need to determine this circle on a part of my geometry, because I need to calculate something specifically for this circle are in FLUENT. So I need to define a name for it in (named selection) then I will be able to select that in FLUENT and calculate for that area. What should I do?

Please help me with this. Thank you.

Marion · November 21, 2012, 04:46

Hi,

The thing is to have nodes on this geometry in order to define it within Fluent. so it has to be part of your geometry definition: I think you need to split your geometry where you want to put the disc. Then split that face with a disc. And define the disc as "interior".

However, if it's only post processing, you may be able to do this in CFD post directly.

Marion.

November 20, 2012, 19:32	How to define a 2-D surface in a 3-D geometry?	#1
amir2920 Member Join Date: May 2009 Posts: 58 Rep Power: 17	Hello, I am Using Ansys 14.0. I want to define a surface (a circle) on my 3-d geometry. But the design modeler software needs thickness and does not creates a surface in a 3D geometry. I need to determine this circle on a part of my geometry, because I need to calculate something specifically for this circle are in FLUENT. So I need to define a name for it in (named selection) then I will be able to select that in FLUENT and calculate for that area. What should I do? Please help me with this. Thank you.

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November 21, 2012, 04:46		#2
Marion Senior Member Marion Join Date: Jul 2012 Location: France Posts: 122 Rep Power: 15	Hi, The thing is to have nodes on this geometry in order to define it within Fluent. so it has to be part of your geometry definition: I think you need to split your geometry where you want to put the disc. Then split that face with a disc. And define the disc as "interior". However, if it's only post processing, you may be able to do this in CFD post directly. Marion.