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Old   March 17, 2005, 09:14
Default Flapped Airfoil
  #1
Jared
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Hi,

I have a model of a NACA0012 airfoil which works great. I now want to add a flap to the trailing edge and compute the flow using several different deflection angles. I have a script that will give me the boundary coordinates for the flapped airfoil, so i could use brute force and make a different gambit model for each deflection, but I'm wondering if there is a simpler way; maybe a way to make one model, and then be able to rotate the flap about the hinge for each angle.

I'm sure lots of people have done this, but I wasn't able to find any examples in this forum or www.learningcfd.com, so any help or direction is much appreciated.

Thank you, Jared
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Old   March 17, 2005, 10:47
Default Re: Flapped Airfoil
  #2
Jörn Beilke
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Have a look at this:

http://www.gridpro.com/gridgallery/3elementairfoil.html

Gambit might not be the best tool for this purpose
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Old   March 17, 2005, 12:29
Default Re: Flapped Airfoil
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Jared
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So if i was stuck using Gambit, is there a way to just have the flap deflect?
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Old   March 17, 2005, 12:43
Default Re: Flapped Airfoil
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Jörn Beilke
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You might try the moving mesh feature of Fluent.
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Old   March 22, 2005, 20:06
Default Re: Flapped Airfoil
  #5
Chetan Kadakia
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I don't think moving mesh won't work, unless you are acutally studying the transition from flaps up to flaps down and changing angles of flaps. But if you are looking at a flap in a fixed angle, then you just need to recreate the mesh. However, you can rotate the flap angle in Gambit by choosing the center (I think you may have to create a local coordinate axis) let's say at the leading edge, and then rotate as needed (default axis of rotation will be (0, 0, 1). So the mesh should be fairly easy to recreate for several deflections.

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