# 3D problem simplify to 2D ??

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 March 21, 2016, 04:42 3D problem simplify to 2D ?? #1 New Member   m Join Date: Mar 2016 Posts: 13 Rep Power: 3 If i've asymmetric 3d airfoil, how i can use cfx to solve it in 2D plane instead of 3D in cfx

 March 21, 2016, 04:43 #2 Senior Member   Lance Join Date: Mar 2009 Posts: 625 Rep Power: 15

 March 21, 2016, 15:58 #3 New Member   m Join Date: Mar 2016 Posts: 13 Rep Power: 3 Thanks for replying but that's not the answer of my questions. I mean that i've already the 3d symmetrical geometry but i want to simulate it in 2d cause it's symmetric . Is there anyway to extract the 2d plane from the 3d drawing or i must draw it again in 2d plan and do meshing again the plug it in cfx

 March 21, 2016, 17:58 #4 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 14,327 Rep Power: 110 Just because the geometry is symmetric does not mean that it can be reduced to a 2D simulation. But to answer your question: You will have to go back to whatever solid modelling package you used to generate this and extract a 2D slice and remesh with this. Then you can do a 2D simulation as suggested by the FAQ linked by Lance.

 March 21, 2016, 18:31 #5 New Member   m Join Date: Mar 2016 Posts: 13 Rep Power: 3 Thank you for your kindely attention, i 'm using the balde design modeler to model my turbomachinery problem in 3d but to simplify the simulation i want to simulate it in 2d first at cfx,, the difficulty is blade design modeler procedure of flowpath and stage-fluid-zone which is essential for the design simulation isn't for 2d just 3d design and i did my design model in 3d so i asked my questions to extract the slice of 2d from the original 3d including both flowpath and stage-fluid-zone to using in icem then cfx another question : Is there another way to model the stage-fluid-zone and flowpath in 2d plane for Turbomachinery stage stator+rotor+stator ??

 March 22, 2016, 17:29 #6 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 14,327 Rep Power: 110 CFX has no tools to extract 2D slices out of geometry. This is a geometry/pre-processing operation so you will need to find some solid modelling package to do it. I presume you will have to export from blade design modeller and import into something else (presumably design modeller).

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