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A Modern Focusing Schlieren for Flow Visualization

  • Leonard M. Weinstein
Conference paper

Summary

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.

Keywords

Flow Visualization Shock Structure Imaging Lens Fresnel Lens Schlieren System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Kantrowitz, A.; and Trimpi, R. L.: A Sharp-Focusing Schlieren System. Journal of Aeronautical Science, 17, May 5, 1950, pp. 311–314.Google Scholar
  2. 2.
    Burton, R. A.: A Modified Schlieren Apparatus for Large Areas of Field. J. Opt. Soc. Am., Vol. 39, November 1949, pp. 907–908.CrossRefGoogle Scholar
  3. 3.
    Buzzard, R. D.: Description of Three-Dimensional Schlieren System. High Speed Photography. Proceedings of the 8th International Congress on High-Speed Photography, Stockholm, June 23–29, 1968. John Wiley & Sons, Inc., New York, pp. 335–340.Google Scholar
  4. 4.
    Fish, R. W.; and Parnham, K.: Focusing Schlieren Systems. C. P. No. 54 (13. 865), ARC Technical Report. Technical Note No. IAP 999, November 1950.Google Scholar
  5. 5.
    Weinstein, L. M.: An Improved Large-Field Focusing Schlieren System. 29th Aerospace Sciences Meeting, Reno, NV, AIAA Paper 91-0567, Jan. 7–10, 1991.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

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

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