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Old 04-10-2019, 10:26 AM   #63 (permalink)
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The 'gurney' flap may just be a stiffener to prevent flutter in the panel.
Since the wheel well is in accelerated flow,it will be at a lower static pressure than at the forward stagnation point ahead of the radiator.That being,the air must scavenge out through any penetration in the wheel well,simply by virtue of the pressure differential.
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