• Infrared and Laser Engineering
  • Vol. 53, Issue 1, 20230176 (2024)
Rong Lv1, Qinglin Niu1, and Xiaobing Wang2
Author Affiliations
  • 1School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, China
  • 2National Key Laboratory of Scattering and Radiation, Shanghai 200438, China
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    DOI: 10.3788/IRLA20230176 Cite this Article
    Rong Lv, Qinglin Niu, Xiaobing Wang. Numerical simulation of infrared radiation characteristics of near-space aircraft side jet due to angle of attack[J]. Infrared and Laser Engineering, 2024, 53(1): 20230176 Copy Citation Text show less
    The cone-cylinder-flare model with a side jet
    Fig. 1. The cone-cylinder-flare model with a side jet
    Computational domain and grids distribution
    Fig. 2. Computational domain and grids distribution
    Schematic diagram of observation angle
    Fig. 3. Schematic diagram of observation angle
    Comparison of calculated results and reference data
    Fig. 4. Comparison of calculated results and reference data
    Contours of temperature at different angles of attack
    Fig. 5. Contours of temperature at different angles of attack
    Contours of species at different angles of attack
    Fig. 6. Contours of species at different angles of attack
    Distribution curves of flow field parameters along the wall-attached line with/without chemical reaction flow
    Fig. 7. Distribution curves of flow field parameters along the wall-attached line with/without chemical reaction flow
    Radiances in the MWIR band at different angles of attack with/without chemical reaction
    Fig. 8. Radiances in the MWIR band at different angles of attack with/without chemical reaction
    Spectral radiant intensity of aircraft body at different angles of attack
    Fig. 9. Spectral radiant intensity of aircraft body at different angles of attack
    Radiances of aircraft body at different observation angles in observing orientation 1
    Fig. 10. Radiances of aircraft body at different observation angles in observing orientation 1
    Radiances of aircraft body at different observation angles in observing orientation 2
    Fig. 11. Radiances of aircraft body at different observation angles in observing orientation 2
    Spectral radiant intensity at different angles of attack
    Fig. 12. Spectral radiant intensity at different angles of attack
    Radiances at different observation angles in observing orientation 1
    Fig. 13. Radiances at different observation angles in observing orientation 1
    Radiances at different observation angles in observing orientation 2
    Fig. 14. Radiances at different observation angles in observing orientation 2
    ParameterValue
    Ma5
    P/Pa5.53×103
    T/K216.65
    Tj/K2058
    O20.234
    N20.766
    Table 1. Simulation conditions
    ParameterValue
    Ma3
    P/Pa1.949×104
    T/K103.2
    PR50
    Tj/K223
    Table 2. Wind tunnel test conditions
    Rong Lv, Qinglin Niu, Xiaobing Wang. Numerical simulation of infrared radiation characteristics of near-space aircraft side jet due to angle of attack[J]. Infrared and Laser Engineering, 2024, 53(1): 20230176
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