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April 24, 2011, 17:55 |
Boundary layer in the corner
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#1 |
Senior Member
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Hello,
I will be grateful for info how to deal with the 2d boundary layer on highly convex boundaries ("corners") in GAMBIT. How to fix boundary layer shown on the image attached? I have set "internal continuity" option. Truffaldino |
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May 2, 2011, 02:56 |
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#2 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
your BL seems to be to thick
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In memory of my friend Hervé: CFD engineer & freerider |
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May 6, 2011, 08:56 |
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#3 |
Senior Member
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Yes it is thick for Gambit, but represents quite correctly the problem: a small step at the airfoil at low reynolds number. In my case bl size is of order of 1 mm at Re=50000, while the step size is of order of 5-10 mm.
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May 6, 2011, 09:05 |
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#4 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
if the BL is to thick, Gambit should failed to create it.
In your case Gambit creates something. If you want you can send me your dbs file, I will take a look on monday
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In memory of my friend Hervé: CFD engineer & freerider |
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May 7, 2011, 07:57 |
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#5 | |
Senior Member
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Quote:
I have already solved the problem (see image below). I have just meshed edge containing corner using curvature size function. Truffaldino |
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