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[ICEM] ICEM Hexa_Airfoil with 2 sharp edges blocking?

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Old   January 21, 2013, 12:09
Default ICEM Hexa_Airfoil with 2 sharp edges blocking?
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Dear all,

I have been trying to mesh this airfoil in 2D after I did the youtube tutorial a couple of times.

This blade is from an automotive cooling fan.

Here's the profile




Here it is after the O-grid and splits



Then I thought I could just collapse both edges and blocks at the tips similar to the sharp trailing edge from the tutorial.

I did and I'm getting this..




From the last picture, the 2 airfoil sides merge to one after I collapse both blocks at the edges..
Am I missing something or is what I am trying to do fundamentally wrong?

I would appreciate some help..

Thanks,
T
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Old   January 21, 2013, 12:19
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Hello catthan,

-basically you can go for any profile around the airfoil and split it to generate the mesh

what are your objectives?
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Old   January 21, 2013, 12:24
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Sijal Ahmed Memon (turboenginner@gmail.com)
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You need quarter O-grid

See these threads:

Meshing of a parabolic trough

Problems with meshing a 3D wing w/winglet

Quarter O-grid topology for propeller blade

Quarter O-grid from vertices and !!!!!! Why?

http://www.youtube.com/watch?v=92vScop7b8Q

Also try simple approach:
Blocking strategy for inclined plate
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Old   January 21, 2013, 12:47
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your blocking is not good... look at thi thread :

Meshing of a parabolic trough
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Regards,
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
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Old   January 21, 2013, 14:02
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Thanks guys, quite a bit of reading there to do.

Will make a few attempts and post back.

Thanks a lot!

T
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Old   January 24, 2013, 06:11
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Ok guys, managed to mesh the airfoil successfully. The approach from the trough thread was the most applicable.

I looked at quarter o-grids and y-grids, however it wouldn't let me create them in 2D.

Well, probably with a few smart splits I could have made a smth similar but anyway,,

I'm sure I'll find this approach useful once I move on to 3D modelling.

Thanks to all!

Best,
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Old   January 24, 2013, 06:26
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Quote:
Originally Posted by Catthan View Post
Ok guys, managed to mesh the airfoil successfully. The approach from the trough thread was the most applicable.

I looked at quarter o-grids and y-grids, however it wouldn't let me create them in 2D.

Well, probably with a few smart splits I could have made a smth similar but anyway,,

I'm sure I'll find this approach useful once I move on to 3D modelling.

Thanks to all!

Best,
Y-grids is used on 3d blocking, but you can use in 2D if you are smart enough.

However quarter ogrid can be used for 2d or 3d
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