Infrared and Laser Engineering, Volume. 54, Issue 3, 20240398(2025)

Numerical simulation of infrared radiation characteristics of high-speed aircraft’s stage separation flow field

Yang’aoxiao FU, Mingsong DING, Qingzong LIU, Peng LI, Weizhong DONG, Tiesuo GAO, and Tao JIANG*
Author Affiliations
  • Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China
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    Figures & Tables(15)
    Computation result of rocket motor plume flow field
    Comparison of spectral radiant intensity
    Schematic diagram of the computation configuration
    Schematic diagram of stage separation flow filed
    Flow field temperature distribution on symmetry plane
    Flow field species mass fraction distribution on nozzle symmetry plane
    Contour of surface temperature
    Schematic diagram of observation angle
    Comparison of surface and flow’s spectral radiant intensity
    Comparison of different species’ spectral radiant intensity
    Radiant intensity at different observation angles
    Flow field parameter distribution on nozzle symmetry plane (reacting flow)
    Flow field parameter distribution on nozzle symmetry plane (chemically frozen flow)
    • Table 1. Chemical reaction model of high temperature air

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      Table 1. Chemical reaction model of high temperature air

      No.ReactionNo.Reaction
      1N2+M1↔N+N+M14O+NO↔N+O2
      2O2+M2↔O+O+M25O+N2↔N+NO
      3NO+M3↔N+O+M36N+O↔NO++e
    • Table 2. Chemical reaction model of high temperature air

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      Table 2. Chemical reaction model of high temperature air

      No.ReactionNo.Reaction
      1CO2+M4↔CO+O+M47OH+CO↔CO2+H
      2CO2+O↔O2+CO8OH+H2↔H2O+H
      3CO+NO↔CO2+N9H+O2↔OH+O
      4H2O+M5↔H+OH+M510O+H2↔OH+H
      5H2+M6↔H+H+M611OH+OH↔H2O+O
      6OH+M7↔O+H+M7
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    Yang’aoxiao FU, Mingsong DING, Qingzong LIU, Peng LI, Weizhong DONG, Tiesuo GAO, Tao JIANG. Numerical simulation of infrared radiation characteristics of high-speed aircraft’s stage separation flow field[J]. Infrared and Laser Engineering, 2025, 54(3): 20240398

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    Paper Information

    Category: Infrared

    Received: Sep. 10, 2024

    Accepted: --

    Published Online: Apr. 8, 2025

    The Author Email: Tao JIANG (fengqiaoren999@163.com)

    DOI:10.3788/IRLA20240398

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