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-   -   Taylor flow in cylindrical coordinates (http://www.cfd-online.com/Forums/openfoam-solving/58979-taylor-flow-cylindrical-coordinates.html)

dante February 12, 2008 11:49

I want solve Taylor laminar fl
 
I want solve Taylor laminar flow (whit icoFOAM I suppose) between two Contra-Rotating cylindrers. In this it's very simple impose Bsc in cylindrical coordinates, how can I do?

cedric_duprat February 12, 2008 12:16

Hi Dante, In fact, OF solv
 
Hi Dante,

In fact, OF solve NS equations in cartesian coordinate so, you've got two solutions:
1- you adapte your boundary conditions in a cartesian way
2- you change all the equations, discretisations, ect ... in a cylindrical way.

According to me, the first method is the easiest :o)

I don't know if it will help you but, at this adress from wiki: http://openfoamwiki.net/index.php/Si...e_next_meeting

you can download a tool to rotate your boundary conditions (Patch like ... wall for example). It's a good start also to initialise your internal field.

I hope it will help you.

PS: on wiki, from Hakan Nilsson, you can find how to deals with cylindrical coordinate with OF but, for Post-processing, thank you Hakan.

Cedric

dante February 12, 2008 13:01

Thank you very much Cedric, I
 
Thank you very much Cedric, I will show you my good results (I hope).

By

danielle April 6, 2008 00:16

Hi, In my equation in a cyli
 
Hi,
In my equation in a cylindrical coordinate I have laplacien(A), I will solve it in Open Foam.
How can I write this term in OF ?


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