# 2d axisymmetry problem in CFX

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 February 1, 2006, 10:48 2d axisymmetry problem in CFX #1 sameer Guest   Posts: n/a hello all, i am a doing my PG in MUMBAI. i am doing a project in CFX, which is a 2D axisymmetric problem. Can any one tell me , how to that coz CFX doesnt solve 2d problems. wating for reply & solution.

 February 1, 2006, 12:00 Re: 2d axisymmetry problem in CFX #2 siva Guest   Posts: n/a hello, Make 3d mesh with 1 cell in 3rd direction. This gives you 2D solution. Regards, Siva

 February 1, 2006, 16:26 Re: 2d axisymmetry problem in CFX #3 Glenn Horrocks Guest   Posts: n/a Hi, There is some discussion of 2D simulations in the CFX10 documentation. Glenn Horrocks

 February 3, 2006, 05:50 Re: 2d axisymmetry problem in CFX #4 Ganapathy Guest   Posts: n/a Axisymmetric may be difficult while using 1 cell 3D

 February 5, 2006, 16:33 Re: 2d axisymmetry problem in CFX #5 Glenn Horrocks Guest   Posts: n/a Hi, CFX can do 2D axisymmetric simulations just fine. Just sweep the geometry around a small arc (say 1 degree) and one element thick and it works fine. On little trick to keep in mind here is mass flows are measured on your wedge, not the full revolved shape. That is if you have a 1 degree wedge the mass flows will be 1/360 of the total mass flow. Glenn Horrocks

 March 1, 2006, 13:36 Re: 2d axisymmetry problem in CFX #6 Manu Guest   Posts: n/a Hi Glenn I m trying to model a 45 degree wedge shape of a 1mm dia and 1000mm long pipe.I am generating structured mesh od 40x10000=4 Million grid points. But it turns out to be nearly correct but not exact.That is when i am computing U/Umean.It is coming above 2 but It must come 2. Do i need further refinement or it is not possible to get an exact solution. Please help! Manu