[ICEM] How would you block a wing-tip tank like this?

micdg96 · September 5, 2019, 11:01

Hello,

I'm having troubles in meshing a wing with a wing-tip tank. I tried blocking as you can see in the picture, I get no errors in mesh checking, but there is a strange behaviour of the mesh on the tank.

Can someone help me?

These are the links of the images

bluebase · September 5, 2019, 17:16

Hi micdg96,

it seems you are not yet finished with blocking.

You blocking does not respect the curvature on the tip of the tank. You might need a local c-grid there. Right now there seems to be one face which has to cover half a sphere.

If the picture at the tail is also an issue (i cant really see, the resolution is too coarse), then you need to check, whether you don't degenerate a block in that area (such as merged vertices/edges).

Do you know about the guide Simons Tips and Tricks (read the stick post of this subforum)? It might give you a bit more insight, why you get the current mesh from your blocking.

Best regards,
Sebastian

micdg96 · September 7, 2019, 05:02

Thank you Sebastian. Doing a Local C-Grid around the spheric surface solved my problem!

September 5, 2019, 11:01	How would you block a wing-tip tank like this?	#1
micdg96 New Member Join Date: Dec 2018 Posts: 4 Rep Power: 7	Hello, I'm having troubles in meshing a wing with a wing-tip tank. I tried blocking as you can see in the picture, I get no errors in mesh checking, but there is a strange behaviour of the mesh on the tank. Can someone help me? These are the links of the images Last edited by micdg96; September 22, 2019 at 07:17.

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September 5, 2019, 17:16		#2
bluebase Senior Member Sebastian Engel Join Date: Jun 2011 Location: Germany Posts: 567 Rep Power: 21	Hi micdg96, it seems you are not yet finished with blocking. You blocking does not respect the curvature on the tip of the tank. You might need a local c-grid there. Right now there seems to be one face which has to cover half a sphere. If the picture at the tail is also an issue (i cant really see, the resolution is too coarse), then you need to check, whether you don't degenerate a block in that area (such as merged vertices/edges). Do you know about the guide Simons Tips and Tricks (read the stick post of this subforum)? It might give you a bit more insight, why you get the current mesh from your blocking. Best regards, Sebastian

September 7, 2019, 05:02		#3
micdg96 New Member Join Date: Dec 2018 Posts: 4 Rep Power: 7	Thank you Sebastian. Doing a Local C-Grid around the spheric surface solved my problem!