A Modern Focusing Schlieren for Flow Visualization

  • Leonard M. Weinstein
Conference paper


A focusing schlieren system has been developed that does not have the limitations of previous versions, such as low image brightness, small field of view, and difficulty of use. Two-dimensional slices of the flow can be examined at selected depths. Good results are demonstrated, even through poor optical quality windows. A comparison with shadowgraph and conventional schlieren is also shown.


Flow Visualization Shock Structure Imaging Lens Fresnel Lens Schlieren System 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • Leonard M. Weinstein
    • 1
  1. 1.NASA Langley Research CenterHamptonUSA

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