Large-Eddy Interpretation of LDA Results Obtained by Conditional Seeding in a Circular Jet

  • B. Lehmann
Conference paper


In individual realization laser-Doppler anemometry the fluctuations of tracer particle concentration cause so-called concentration bias errors of the statistical LDA results which superimpose to the well-known errors of the statistical velocity bias. The most extreme case of concentration bias enables us, however, to split the velocity information obtained from fluid regions of zero and of finite particle concentration. This can be used to carry out conditionally sampled LDA measurements.


Turbulence Intensity Axial Velocity Profile Rotational Fluid Entrain Fluid Intermittency Region 
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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • B. Lehmann
    • 1
  1. 1.Institut für Experimentelle Strömungsmechanik, Abt. TurbulenzforschungDFVLRBerlin 12Germany

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