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-   -   Rotate part in wind tunnel (http://www.cfd-online.com/Forums/star-ccm/125757-rotate-part-wind-tunnel.html)

andr3s_diaz October 30, 2013 10:19

Rotate part in wind tunnel
 
Hi all,

I'm currently doing aerodynamics analysis on a simple geometry in a wind tunnel. I want to get the drag force data in different wind directions (yaw), for example: -15, -10, -5, 0, 5, 10, 15.

Actually my geometry is perpendicular to the inlet (velocity inlet) plane of the wind tunnel.

Do I have to rotate my geometry over the wind tunnel (from my CAD softawe) ? Is there another way to solve it ?

Thanks !

rwryne October 30, 2013 14:02

Quote:

Originally Posted by andr3s_diaz (Post 459880)
Hi all,

I'm currently doing aerodynamics analysis on a simple geometry in a wind tunnel. I want to get the drag force data in different wind directions (yaw), for example: -15, -10, -5, 0, 5, 10, 15.

Actually my geometry is perpendicular to the inlet (velocity inlet) plane of the wind tunnel.

Do I have to rotate my geometry over the wind tunnel (from my CAD softawe) ? Is there another way to solve it ?

Thanks !


Right click your part in the tree (or region if you want...) and hit transform.

andr3s_diaz October 31, 2013 12:50

Thank you !

I did right click in my part > transform > rotate and I have rotated my part over the ground but now my geometry is not symmetrical... (I have symmetrical plane and half geometry of my part for save time in the volume mesh and iterating processes)

How can I fix this problem ?

Thanks, regards

plucas October 31, 2013 15:01

Quote:

Originally Posted by andr3s_diaz (Post 460048)
Thank you !

I did right click in my part > transform > rotate and I have rotated my part over the ground but now my geometry is not symmetrical... (I have symmetrical plane and half geometry of my part for save time in the volume mesh and iterating processes)

How can I fix this problem ?

Thanks, regards

Do not run half a car. You cannot run a half model using symmetry with the car at yaw

andr3s_diaz November 5, 2013 05:52

Hi plucas,

Thanks for your reply !

Yes, you right. Now I'm running the full model in a full wind tunnel without symmetrical planes.
Sorry for the stupid question. That was obvious but I was confused.

plucas November 5, 2013 09:52

Quote:

Originally Posted by andr3s_diaz (Post 460598)
Hi plucas,

Thanks for your reply !

Yes, you right. Now I'm running the full model in a full wind tunnel without symmetrical planes.
Sorry for the stupid question. That was obvious but I was confused.

Not a stupid question. The site is for learning ;)


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