Acta Mechanica Sinica

, Volume 10, Issue 3, pp 220–226 | Cite as

Surface oil flow technique and liquid crystal thermography for flow visualization in impulse, wind tunnels

  • Tang Guiming


This paper describes flow visualization techniques employing surface oil flow and liquid crystal thermography suitable for use in impulse wind tunnels. High spatial resolution photographs of oil flow patterns and liquid crystal thermograms have been obtained within test times ranging from 7 to 500 ms and have been shown to be very useful for revealing the detailed features of 3-D separated flow. The results from oil flow patterns, liquid crystal thermograms, schlieren photographs and heat flux measurements are shown to be in good agreement.

Key Words

flow visualization oil flow technique liquid crystal thermography impulse wind tunnel 


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Copyright information

© Chinese Society of Theoretical and Applied Mechanics 1994

Authors and Affiliations

  • Tang Guiming
    • 1
  1. 1.Institute of MechanicsChinese Academy of SciencesBeijingChina

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