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-   -   2D Axisymmetric modeling (http://www.cfd-online.com/Forums/cfx/18397-2d-axisymmetric-modeling.html)

Bobby Malone September 20, 2000 17:04

2D Axisymmetric modeling
 
I am having problems generating a 2D grid in CFX 5.4. When I generate a thin solid of less than about 30 degrees in the radial direction, I get various fatal errors dealing with the quality of the grid. What is the procedure for generating a grid with only a single node in the radial direction?

joecfd September 22, 2000 01:02

Re: 2D Axisymmetric modeling
 
You cannot explicitly generate a 2D grid in CFX-5.4 It only does 3D.

So, that basically leaves you with trying to gererate a thin layer of tetrahedrons, say a few elements thick, and then apply symmetry boundary conditions on either side.

You need to make the geometry narrow enough to be "almost" 2D. Be careful when doing this though as it is easy to generate bad tetrahedral elements which the solver may not be able to handle.


Li Xinfeng September 24, 2000 02:44

Re: 2D Axisymmetric modeling
 
In fact, cfx-build can get the 2-d axisymmetric modeling,but it's a 3-d solid indeed and k=1

M.S valipour December 4, 2000 06:27

Re: 2D Axisymmetric modeling
 
dear sir i want know more than more about CFX code. please send me many of results from problem invstigation with code & please told me about flexability this code.

M.S valipour December 4, 2000 06:35

Re: 2D Axisymmetric modeling
 
dear sir i want know more than more about CFX code. please send me many of results from problem invstigation with code & please told me about flexability this code.


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