Infrared and Laser Engineering, Volume. 51, Issue 4, 20210376(2022)
A numerical study of carbon dioxide radiation and transmission property in high temperature shock layer
Figures & Tables(8)
Fig. 2. Radiation flux received by photosensitive surface of detector
Fig. 3. Flow field simulation results in the shock layers at
Fig. 4. Flow field simulation results in the shock layers at
Fig. 5. Flow field simulation results in the shock layers at
Fig. 6. (a) 2.5-3 μm transmissibity; (b) 4.1-4.8 μm transmissibity; (c) 2.5-3 μm spectral radiance; (d) 4.1-4.8 μm spectral radiance; (e) 2.5-3 μm spectral radiant emittance; (f) 4.1-4.8 μm spectral radiant emittance of carbon dioxide in shock layer at
Fig. 7. Proportion of different radiation sources in mid-wave infrared
Table 1. Proportion of target, shock layers and window radiation in mid-wave band
View tableView in ArticleTable 1. Proportion of target, shock layers and window radiation in mid-wave band
Conditions Proportion Wavelength/μm 4.2-4.4 4.4-4.6 Ma=3 h=1 km `ηt 0.12 0.72 `ηs 0.86 0.17 `ηw 0.02 0.11 Ma=4 h=1 km `ηt 0.03 0.30 `ηs 0.96 0.65 `ηw 0.01 0.05 Ma=5 h=1 km `ηt `ηs `ηw 0.02 0.98 0.00 0.06 0.92 0.02
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Mingqi Pang, Haizheng Liu, Daijun Zhang, Zelin Shi. A numerical study of carbon dioxide radiation and transmission property in high temperature shock layer[J]. Infrared and Laser Engineering, 2022, 51(4): 20210376
Paper Information
Category: Special issue—Infrared detection and recognition technology under superspeed flow field
Received: Jun. 7, 2021
Accepted: --
Published Online: May. 18, 2022
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