Modeling 2D Geometries

spring · April 6, 2010, 12:06

Hi,

I want to model a 2D geometry in ansys (12.1) and I am not sure if I my method is the right one. First I drawed polygon lines with a closed end, and then I extruded this sketch. My problem is that the geometry becomes 3-dimensional with the extrusion. And it is impossible to put the depth (for the extrusion) to 0mm or even 1e-1000mm (i.e. as thinn as possible) . So my question is: is there another way to create simlpe faces in ansys or does it only go by extrusion?
Thanks in advance for an answer!

P.S.: Sorry if this is a stupid question but I am new with ansys and I am desperate

PSYMN · April 7, 2010, 12:31

Extrude is for 3D data… If you just want to create a surface from a sketch, then go to “Concept => Surfaces from Sketches”.
SurfaceFromSketches_01.gif
This will prompt you to select your sketch(es). Then click generate.
SurfaceFromSketches_02.gif
The SurfaceSketch will appear in the model tree with its associated Sketches…
SurfaceFromSketches_03.gif
Next you will need to select the edges to apply named selections for things like inlets and outlets…

spring · April 8, 2010, 06:01

Hi PSYMN,

It works

! Thank you for your detailed reply

April 6, 2010, 12:06	Modeling 2D Geometries	#1
spring Member Sarah Join Date: Apr 2010 Location: Munich Posts: 30 Rep Power: 16	Hi, I want to model a 2D geometry in ansys (12.1) and I am not sure if I my method is the right one. First I drawed polygon lines with a closed end, and then I extruded this sketch. My problem is that the geometry becomes 3-dimensional with the extrusion. And it is impossible to put the depth (for the extrusion) to 0mm or even 1e-1000mm (i.e. as thinn as possible) . So my question is: is there another way to create simlpe faces in ansys or does it only go by extrusion? Thanks in advance for an answer! P.S.: Sorry if this is a stupid question but I am new with ansys and I am desperate

April 7, 2010, 12:31	Surfaces from Sketches	#2
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	Extrude is for 3D data… If you just want to create a surface from a sketch, then go to “Concept => Surfaces from Sketches”. SurfaceFromSketches_01.gif This will prompt you to select your sketch(es). Then click generate. SurfaceFromSketches_02.gif The SurfaceSketch will appear in the model tree with its associated Sketches… SurfaceFromSketches_03.gif Next you will need to select the edges to apply named selections for things like inlets and outlets…

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April 8, 2010, 06:01		#3
spring Member Sarah Join Date: Apr 2010 Location: Munich Posts: 30 Rep Power: 16	Hi PSYMN, It works ! Thank you for your detailed reply