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iftDir and dragDir in controlDict for three element airfoils

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Old   July 11, 2013, 15:09
Default iftDir and dragDir in controlDict for three element airfoils
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saeideh mohamadi
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Hi Dear Foamers,
when we have three element airfoil. e.g the main element has 0 degree angle and the flap(another element of three element airfoil) has 30 degree angle.
what should we write for liftDir and dragDir in controlDict according to their angles?
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