MEASUREMENTS ON AIRFOILS WITH FLAPS AT MEDIUM REYNOLDS-NUMBERS

Authors

  • D. Althaus

Keywords:

Aerodynamics, Structures, Design

Abstract

Flaps are used for handling an airplane in the air. By deflecting the flap the camber of the airfoil is varied resulting in an increase or decrease of lift. The increase of drag encountered with this lift-effect should be as small as possible. Flaps are normally used as ailerons on wings and at the horizontal and vertical tailplanes. To give the constructor some idea about the effectiveness and perfomance of various flaps, measurenents are carried out on some cambered and symrnetrical airfoils. As a result of the measurements on symmetrical airfoils a consideration on the influence of the airfoil polar and the aspect ratio on the drag of horizontal tailplanes will be given.

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Issue

Vol. 5 No. 2 (1978)

Section

Articles

License

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