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May 29, 2012, 10:14
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2D airfoil meshing help
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#1 |
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New Member
abishai murday
Join Date: Dec 2010
Posts: 23
Rep Power: 15  |
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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May 29, 2012, 10:31
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#2 |
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Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
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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In memory of my friend Hervé: CFD engineer & freerider  |
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May 29, 2012, 10:55
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#3 |
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New Member
abishai murday
Join Date: Dec 2010
Posts: 23
Rep Power: 15 |
thanks for the reply Max...ill give this a try
thank you |
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May 30, 2012, 14:10
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#4 |
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New Member
abishai murday
Join Date: Dec 2010
Posts: 23
Rep Power: 15 |
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... thank you |
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May 31, 2012, 01:44
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#5 |
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Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
picture please
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In memory of my friend Hervé: CFD engineer & freerider |
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May 31, 2012, 16:49
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#6 |
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New Member
abishai murday
Join Date: Dec 2010
Posts: 23
Rep Power: 15 |
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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June 1, 2012, 02:00
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#7 |
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Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
your box is to close from airfoil
Use an ellipse instead of the box
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In memory of my friend Hervé: CFD engineer & freerider |
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