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
- Infrared and Laser Engineering
- Vol. 51, Issue 4, 20210376 (2022)
Fig. 1. Radiation transport in the shock layer
Fig. 2. Radiation flux received by photosensitive surface of detector
Fig. 3. Flow field simulation results in the shock layers at Ma =3, h =1 km. (a) Pressure; (b) Temperature; (c) Flow field approximation
Fig. 4. Flow field simulation results in the shock layers atMa =4, h =1 km. (a) Pressure; (b) Temperature; (c) Flow field approximation
Fig. 5. Flow field simulation results in the shock layers atMa =5, h =1 km. (a) Pressure; (b) Temperature; (c) Flow field approximation
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 h =1 km, Ma =3, 4, 5 respectively
Fig. 7. Proportion of different radiation sources in mid-wave infrared
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Table 1. Proportion of target, shock layers and window radiation in mid-wave band
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