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-   -   Reynolds Number (https://www.cfd-online.com/Forums/cfx/124678-reynolds-number.html)

Loris88 October 10, 2013 13:11

Reynolds Number
 
Hello everyone!
Thanks in advance for who will reply at this question!
I use Ansys 14.0.
I have introduced my mesh in CFX-Pre...then I have assigned boundary conditions. At the inlet, I have placed the velocity. This velocity is an input known of my problem as the Reynolds number that I have it.
When I start with CFX-Solver, I read that the Reynolds number is different respect the Reynolds that I have. The problem is that Ansys calculates the Global Length with a number that I do not know from where it comes. Ansys Global Length is 5.7927E-02. :confused::confused:
My Global Length is 5.0E-0.2. (This is the correct number).
How may I correct this error with Ansys? If I have to write an expression in CFX-Pre, how can I do that?
Please, you do not say me "See Help or Tutorial", because I have already done but I did not understood nothing.:)
Thanks

ghorrocks October 10, 2013 17:23

I should write a FAQ on this, but in the meantime try this post: http://www.cfd-online.com/Forums/cfx...umber-cfx.html

Loris88 October 11, 2013 03:56

Quote:

Originally Posted by ghorrocks (Post 456226)
I should write a FAQ on this, but in the meantime try this post: http://www.cfd-online.com/Forums/cfx...umber-cfx.html

Thank you!
The link that you have given me it has been useful!


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