van der Wall, Berend G. and Richard, Hugues (2006) Analysis Methodology for 3C PIV Data of Rotary Wing Vortices. Experiments in Fluids, 40 (5), pp. 798-812. Springer-Verlag. DOI: 10.1007/s00348-006-0117-x.
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3C-PIV data from tip vortices of either fixed-wing or rotating wing experiments are challenging from an analysis point of view. Model motion, vortex wander, spurious vectors, periodic and aperiodic effects, turbulence and other disturbing effects are all present in the data. In most cases the vortices are not measured perpendicular to their axis as well. Engineers need time-averaged properties from the vortex in the vortex axis system for a proper modelization within simulation codes. This article describes the methods needed to deal with all the mentioned problem areas, including the conditional averaging and rotation into the vortex axis system. The methods are validated by using numerically generated vortex vector fields, and finally applied to experimental data from a hover condition of a model rotor.
|Title:||Analysis Methodology for 3C PIV Data of Rotary Wing Vortices|
|Journal or Publication Title:||Experiments in Fluids|
|Page Range:||pp. 798-812|
|Keywords:||HART, PIV, flow field analysis|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Rotorcraft|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L RR - Rotorcraft Research|
|DLR - Research theme (Project):||L - The Active Rotorcraft (old)|
|Location:||Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Helicopters|
Institute of Flight Systems > Rotorcraft
|Deposited By:||Dr.-Ing. Berend G. van der Wall|
|Deposited On:||01 Jun 2006|
|Last Modified:||07 Oct 2013 13:24|
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