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[GAMBIT] 2D airfoil meshing help

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Old   May 29, 2012, 09:14
Default 2D airfoil meshing help
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abishai murday
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Hi everyone..

Could someone please help me on meshing a 2Dairfoil in gambit...ive attached a boundary layer and used sizing functions at the trailing edge vertex and airfoil edges but i always keep having highly skewed meshes at the tip..even though i decrease the min size..i have tried everything kinda..is there something im missing??? i would really appreciate any kind of help and advise on hw to improve the mesh overall....


URL TO PICS
http://img819.imageshack.us/img819/7842/71402200.png
http://img823.imageshack.us/img823/9931/49230210.png
http://img600.imageshack.us/img600/2302/83140483.png
http://img51.imageshack.us/img51/1433/65923687.png

thank you
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Old   May 29, 2012, 09:31
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Maxime Perelli
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split your domain for having more control of your mesh.
For istance you can create an ellipse which surrounds your airfoil.
Split your domain with your ellipse. Be sure the ellipse has an hollow (your airfoil)
Now you can mesh your ellipse surface .
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Old   May 29, 2012, 09:55
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thanks for the reply Max...ill give this a try

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Old   May 30, 2012, 13:10
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Hi MAx

I have tried your suggestions but doesnt seem to work really...I have actually seeded each surface of my airfoil with up to 1000 seeds to be able to have a fine mesh near the region including a sizing function but still ending up with skewed meshes at the trailing edge...

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Old   May 31, 2012, 00:44
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Maxime Perelli
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picture please
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Old   May 31, 2012, 15:49
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abishai murday
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thanks again max for ure reply

heres the pic

ive made the inner box as close as possible to the airfoil but still gettin skewed that the end

http://img221.imageshack.us/img221/626/62801430.png
http://img205.imageshack.us/img205/7158/48309241.png

would really appreciate any kind of feedbackk

thank you
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Old   June 1, 2012, 01:00
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your box is to close from airfoil
Use an ellipse instead of the box
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