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Die Optimierung des Relaxationswiderstandes schlanker Profile in stationärer, ebener Überschallströmung

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Übersicht

Es werden die Bedeutung und die Anwendbarkeit zweier Gleichungen für den Relaxationswiderstand eines schlanken Profils in stationärer, ebener Strömung diskutiert. Für den Überschallbereich wird dieser Widerstand anschließend berechnet und die Frage beantwortet, welches Aussehen ein optimales Profil haben muß, also ein solches, das den Relaxationswiderstand minimiert. Schließlich wird der optimale Relaxations-widerstand mit dem Widerstand eines festen Parabelzweiecks verglichen.

Summary

The importance und the applicability of two formulas for the relaxation drag of a slender profile in steady, plane flow are discussed. For the supersonic case this drag is calculated, and the question is answered, which are the shapes of the optimum profiles, i.e. the profiles that minimize the relaxation drag. Finally, the optimum relaxation drag is compared with the drag of a fixed biconvex airfoil.

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Authors and Affiliations

  1. Institut für Mechanik, Technische Hochschule, Hochschulstr. 1, D-6100, Darmstadt, Bundesrepublik Deutschland

    H. Schilling

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  1. H. Schilling
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Schilling, H. Die Optimierung des Relaxationswiderstandes schlanker Profile in stationärer, ebener Überschallströmung. Ing. arch 50, 225–235 (1981). https://doi.org/10.1007/BF00538230

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  • DOI: https://doi.org/10.1007/BF00538230

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