Boundary file strugglings

Aeroliez · July 3, 2012, 13:01

Hi all,

I am fairly new to OpenFOAM and this post wouldn't be here if I had no strullings with OpenFOAM. I did most of the tutorials and now the time is there to put in my own model - a small airplane - and see what happens. Because I would like to use 'simple' .stp/.stl models of the airplane, I want to use snappyHexMesh to mesh the control volume around the airplane, as is done in the motorBike tutorial.

However... in what way do I have to adapt the boundary file? I keep struggling with defining the right patches. Is there any guide to how to define them (besides the user guide of OpenFOAM)? I tried to follow the procedure of the motorBike file with a simple box, but even this failed :S.

As I spent already more than a fulltime week on this, I really hope someone can help me out! :-)

Thanks,
Liezl

anon_a · July 3, 2012, 13:25

Hey there

I remember I had found this very useful when I was learning sHM.
You can also search this forum, I am sure you will find LOTS of stuff.

Aeroliez · July 3, 2012, 14:35

Quote:

Originally Posted by anon_a

Hey there

I remember I had found this very useful when I was learning sHM.
You can also search this forum, I am sure you will find LOTS of stuff.

Yes, I found that tutorial too. However, it does not treat the boundary file...

anon_a · July 3, 2012, 17:28

The boundary file should be generated in the process.
I guess you mean that all boundary faces are included in the defaultFaces or something and "how can someone separate between each patch?"

In this case, search for autoPatch and createPatch.

July 3, 2012, 13:01	Boundary file strugglings	#1
Aeroliez New Member Aeroliez Join Date: Jul 2012 Posts: 2 Rep Power: 0	Hi all, I am fairly new to OpenFOAM and this post wouldn't be here if I had no strullings with OpenFOAM. I did most of the tutorials and now the time is there to put in my own model - a small airplane - and see what happens. Because I would like to use 'simple' .stp/.stl models of the airplane, I want to use snappyHexMesh to mesh the control volume around the airplane, as is done in the motorBike tutorial. However... in what way do I have to adapt the boundary file? I keep struggling with defining the right patches. Is there any guide to how to define them (besides the user guide of OpenFOAM)? I tried to follow the procedure of the motorBike file with a simple box, but even this failed :S. As I spent already more than a fulltime week on this, I really hope someone can help me out! :-) Thanks, Liezl

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July 3, 2012, 13:25		#2
anon_a Disabled Join Date: Mar 2011 Posts: 174 Rep Power: 15	Hey there I remember I had found this very useful when I was learning sHM. You can also search this forum, I am sure you will find LOTS of stuff.

July 3, 2012, 17:28		#4
anon_a Disabled Join Date: Mar 2011 Posts: 174 Rep Power: 15	The boundary file should be generated in the process. I guess you mean that all boundary faces are included in the defaultFaces or something and "how can someone separate between each patch?" In this case, search for autoPatch and createPatch.