Temperature Measurement by Two-Band Emission Method with CO2 and H2O Molecules

Yuki MORI; Shunya SHIMADA; Shuhei TAKAHASHI; Tadayoshi IHARA; Shinji NAKAYA; Mitsuhiro TSUE

doi:10.2322/tastj.14.Pa_21

a) Chemical Propulsion and Air-breathing Engines

Temperature Measurement by Two-Band Emission Method with CO₂ and H₂O Molecules

Yuki MORI, Shunya SHIMADA, Shuhei TAKAHASHI, Tadayoshi IHARA, Shinji NAKAYA, Mitsuhiro TSUE

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Keywords: Temperature Measurement, Two-Band Emission, Supersonic Flow, High Enthalpy Flow

JOURNAL FREE ACCESS

2016 Volume 14 Issue ists30 Pages Pa_21-Pa_26

DOI https://doi.org/10.2322/tastj.14.Pa_21

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Abstract

Two-band emission method for measuring temperature distribution using CO₂ or H₂O as the emission medium was developed. In the calibration test using McKenna hydrogen flat flame burner, the developed method had similar quantitativity compared with the other measurement methods, CARS and SiC radiant method. When we applied the developed two-band emission method to high enthalpy supersonic wind tunnel experiment, we could capture the behavior of shockwaves and expansion fans in the supersonic flow and the reconstructed temperature distribution was reasonably quantitative.

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