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dynamic meshing for 2D airfoil

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Old   December 9, 2013, 20:31
Default dynamic meshing for 2D airfoil
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Jochem Grietens
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Dear CFD colleagues,

I'm working on my master thesis.It deals with an oscillating airfoil simulation in fluent.

At this point i'm trying to create my mesh in Ansys ICEM 14.5. I would like to create a structured grid in the immediate vicinity of my airfoil with an unstructured grid around it. The outer boundary of this structured grid would be a scaled up version of my airfoil.

As it turns out , i can't seem to find much tutorials or help online to help me learn how to work in ICEM and get it done. Also , i don't really know the terminology used for what i'm trying to do so this makes the search even harder.

Can anybody help out ? Thanks
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Old   December 9, 2013, 21:45
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Travis Carrigan
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Hello,

Your description is spot on. You would like a structured o-grid around the airfoil, generated by a hyperbolic extrusion, surrounded by an unstructured grid. Please see the attached image.

I did this mesh using Pointwise, not ANSYS. But, if you're interested in generating grids like this automatically, please let me know and I can provide some additional information about the tool I used.

Regards,
Travis
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File Type: jpg airfoil.jpg (97.1 KB, 38 views)
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Old   December 10, 2013, 13:05
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Jochem Grietens
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Quote:
Originally Posted by tcarrigan View Post
Hello,

Your description is spot on. You would like a structured o-grid around the airfoil, generated by a hyperbolic extrusion, surrounded by an unstructured grid. Please see the attached image.

I did this mesh using Pointwise, not ANSYS. But, if you're interested in generating grids like this automatically, please let me know and I can provide some additional information about the tool I used.

Regards,
Travis

Thank you very much for the help! Yes I am certainly interested in the tool you used. It is still an option to change to Pointwise since i only JUST started to figure out ICEM.
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Old   December 10, 2013, 13:15
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Travis Carrigan
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No problem. I'll send you a message with some more details.
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Old   December 10, 2013, 14:13
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Jochem Grietens
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While trying some more in ICEM i got stuck. The steps i follow are these :

1) i initiate a block
2) i associate the 4 edges of this block to the 2curves of my scaled up wing geometry
3) i create and O grid block starting from the original block
4) i associate al 4 edges of the inner block to the 2 curves of my actual wing ( the inner geometry)

When i click mesh preview i get this :
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File Type: jpg Forumvraag.jpg (47.9 KB, 27 views)
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