CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   CFX (https://www.cfd-online.com/Forums/cfx/)
-   -   How to set Rotational offset In CFX? (https://www.cfd-online.com/Forums/cfx/169528-how-set-rotational-offset-cfx.html)

aja1345 April 12, 2016 11:28

How to set Rotational offset In CFX?
 
Hi,

I simulated an axial turbine, This turbine includes two stationary frame and one rotating frame as follows:

http://www.upsara.com/images/0t4h_captu33r45re.jpg

Rotation frame=blade

stationary frame=before and after blade

I used frozen rotor model.

In this case, How do i set rotational offset?

Thanks for your guidance.

Aja

Opaque April 12, 2016 11:32

Edit the definition of the Frozen Rotor interface, and you should see a Rotational Offset parameter to be set.

Hope the above helps,

aja1345 April 12, 2016 11:58

Quote:

Originally Posted by Opaque (Post 594688)
Edit the definition of the Frozen Rotor interface, and you should see a Rotational Offset parameter to be set.

Hope the above helps,

Thanks.

But i didn't understood your means completely! because English language is not very good. I am grateful that explain more.

When i enable rotational offset, its value is equal to zero.

http://0up.ir/do.php?imgf=77777_b0ad3.jpg

Opaque April 12, 2016 12:27

The default value is 0 [deg]. That is, use the relative configuration as provided by the mesh you imported.

If you set a value different from 0 [deg], the rotor will be moved by such amount, and the relative configuration will change.

aja1345 April 12, 2016 12:52

Quote:

Originally Posted by Opaque (Post 594703)
The default value is 0 [deg]. That is, use the relative configuration as provided by the mesh you imported.

If you set a value different from 0 [deg], the rotor will be moved by such amount, and the relative configuration will change.

what is your exact meaning of "relative configuration"?

I think that Your means about "configuration " is computational domain. right?

According to picture in post 1, I think that rotational offset is eaual to zero. Am i right?


All times are GMT -4. The time now is 01:12.