CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Specifying axis of rotation (http://www.cfd-online.com/Forums/fluent/45720-specifying-axis-rotation.html)

David Banks August 14, 2007 05:19

Specifying axis of rotation
 
Hi everyone

I have a turbine model whose axis of rotation is parallel with the X-axis (it sits 10m above it).

When you are choosing values for your fluid zone/wall, how do you specify where the axis is? I am inputting a unit vector value of 1 in the X tab but this isnt relating to the real axis

Any help would be great

David

tom August 15, 2007 04:22

Re: Specifying axis of rotation
 
I had the same problem, but the rotation axis wasn't even parallel to one of those in Fluent. So i went back and created the geometry again. But in your case I think it is not necessary. Try to specify the rotation-axis origin.in order to do this you must pick any point on your axis and check its coordinates.

David Banks August 15, 2007 05:14

Re: Specifying axis of rotation
 
Tom

How do I specify the rotation axis origin? Is this done in Fluent?

tom August 15, 2007 05:50

Re: Specifying axis of rotation
 
yes in Fluent, define -> boundary conditions -> zonename ->

you will open the window for defining boudary conditions for the zone you are interested in. rotation-axis origin panel is just next to rotation-axis direction panel.


All times are GMT -4. The time now is 20:59.