Aerodynamic Theory: A General Review of Progress Under a by William Frederick Durand

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By William Frederick Durand

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer booklet data mit Publikationen, die seit den Anfängen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen für die historische wie auch die disziplingeschichtliche Forschung zur Verfügung, die jeweils im historischen Kontext betrachtet werden müssen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

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Extra resources for Aerodynamic Theory: A General Review of Progress Under a Grant of the Guggenheim Fund for the Promotion of Aeronautics

Sample text

23 and 24. Profiles 389 and 382 with points for pressure measure and the corresponding poiars. approximately correspond to the favorable distribution of pressure aimed at in the discussion just above. 6°, the flow has already separated over the larger part of the suction side; the suction has collapsed and the measurements of force (Fig. 23) reveal a strong increase of the profile drag. 6°. This results from diminished sub-pressure and air velocity on the suction side, but at the same time the lift is considerably diminished.

The head of the Jonkowski section surrounds the front end of its skeleton approximately in the shape of a parabola whose ~ -'-\if--Fig. 37. Jonkowski's transformation. Fig. 38. Skeleton of the head of a profile. focus is at the front edge of the skeleton (Fig. 38). If r is the radius of curvature of the leading edge of the section, the skeleton begins at a distance of rl2 behind the leading edge. If the deepest point of the parabola measured from the chord of the skeleton is denoted by 6 k, then in accordance with known properties of the parabola (see Fig.

Profiles 389 and 382 with points for pressure measure and the corresponding poiars. approximately correspond to the favorable distribution of pressure aimed at in the discussion just above. 6°, the flow has already separated over the larger part of the suction side; the suction has collapsed and the measurements of force (Fig. 23) reveal a strong increase of the profile drag. 6°. This results from diminished sub-pressure and air velocity on the suction side, but at the same time the lift is considerably diminished.

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