Generation and control of tracer particles for optical flow investigations in air
Kähler, Christian and Sammler, Bernd and Kompenhans, Jürgen (2002) Generation and control of tracer particles for optical flow investigations in air. Experiments in Fluids, 33 (6), pp. 736-742.
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The production of monodisperse tracer particles with suitable properties for optical flow investigations, such as small size, spherical shape, smooth surface, appropriate density and diffraction index, non-evaporating and agglomerating, electrically neutral, non-toxic and easily removable, is a challenging task. It is shown that high concentrations of narrow band particle size distributions, with a mean diameter below 1 µm, can easily be generated by means of multi-hole nozzles under overcritical pressure conditions. In particular, it is shown that existing explanations of the importance of certain design features of the Laskin nozzle are of minor importance for the generation of appropriate tracer tracer particles.
|Title:||Generation and control of tracer particles for optical flow investigations in air|
|Journal or Publication Title:||Experiments in Fluids|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 736-742|
|Keywords:||Optical fluid measurement technique, PIV, generation of tracer particles|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flight Physics|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Experimental Methods|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||07 Dec 2005|
|Last Modified:||14 Jan 2010 19:13|
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