Schlieren visualization technique for high-enthalpy and low-density flow with LED light source

Naoki Morimoto, Jun Yamashita, Akihiko Tabata, Shigeru Aso, Yasuhiro Tani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A schlieren visualization technique for high-enthalpy and low-density test flow using an LED light source is described. An LED driver circuit was designed and was confirmed its response characteristics. An optical band-pass filter was inserted in the schlieren optical setup to mitigate luminescence emissions of the test flow. The test results indicate that this schlieren visualization technique with the LED light source and the corresponding band-pass filter is feasible for hypervelocity test facilities with low cost. The flow field was numerically reproduced with CFD, which indicates a quantitative threshold level for the feasibility of schlieren visualization.

Original languageEnglish
Title of host publication54th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103933
Publication statusPublished - Jan 1 2016
Event54th AIAA Aerospace Sciences Meeting, 2016 - San Diego, United States
Duration: Jan 4 2016Jan 8 2016

Publication series

Name54th AIAA Aerospace Sciences Meeting
Volume0

Other

Other54th AIAA Aerospace Sciences Meeting, 2016
CountryUnited States
CitySan Diego
Period1/4/161/8/16

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All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

Cite this

Morimoto, N., Yamashita, J., Tabata, A., Aso, S., & Tani, Y. (2016). Schlieren visualization technique for high-enthalpy and low-density flow with LED light source. In 54th AIAA Aerospace Sciences Meeting (54th AIAA Aerospace Sciences Meeting; Vol. 0). American Institute of Aeronautics and Astronautics Inc, AIAA.