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On the applicability of background oriented optical tomography for large scale aerodynamic investigations

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Abstract

 Density fields of the blade tip vortices from a helicopter in hover flight were visualized by a technique which does not require any installation on the helicopter or close to it. The results illustrate an encouraging prospect for the applicability of the technique. It offers the capability of at least qualitative investigations of unsteady density fields even in full-scale flight tests. The underlying principle is briefly described in this article and an extension to a three-dimensional quantitative technique by using multiple cameras is outlined.

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Authors and Affiliations

  1. Institut für Strömungsmechanik Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) Bunsenstrasse 10, D-37073 Göttingen, Germany, , , , , , DE

    M. Raffel, H. Richard & G. E. A. Meier

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  1. M. Raffel
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  2. H. Richard
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  3. G. E. A. Meier
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Received: 8 September 1999 / Accepted: 7 October 1999

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Raffel, M., Richard, H. & Meier, G. On the applicability of background oriented optical tomography for large scale aerodynamic investigations. Experiments in Fluids 28, 477–481 (2000). https://doi.org/10.1007/s003480050408

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  • DOI: https://doi.org/10.1007/s003480050408

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