Time-averaged images of hydrogen fuel plumes by Mie scattering

Richard E. Trucco; Jose Tamagno; Shiva Srinavasan

doi:10.1117/12.163758

2 December 1993 Time-averaged images of hydrogen fuel plumes by Mie scattering

Richard E. Trucco, Jose Tamagno, Shiva Srinavasan

Proceedings Volume 2005, Optical Diagnostics in Fluid and Thermal Flow; (1993) https://doi.org/10.1117/12.163758
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

A flow visualization technique for determining the distribution of hydrogen fuel injected into a high speed pulse-type flow has been developed and successfully demonstrated. This work was carried out in a shock tunnel located at General Applied Science Laboratories. The technique requires seeding the H₂ with sub-micron diameter silicon dioxide particles small enough to assure tagging of the flow field stream lines, even at hypervelocity conditions. A thin laser sheet sliced the test section perpendicularly and, with the use of a free-running black-and- white CCD camera, the Mie scattering off the silica was imaged and recorded. The intensity of the image is directly proportional to the number of scatters which traverse the sampling volume at each planar location.

Citation Download Citation

Richard E. Trucco, Jose Tamagno, and Shiva Srinavasan "Time-averaged images of hydrogen fuel plumes by Mie scattering", Proc. SPIE 2005, Optical Diagnostics in Fluid and Thermal Flow, (2 December 1993); https://doi.org/10.1117/12.163758

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