Infrared and Laser Engineering, Volume. 53, Issue 2, 20230459(2024)

Numerical and experimental research on the effect of outlet structural parameters of diverter nozzle on infrared suppressor performance

Jiadong Du, Yong Shan, and Jingzhou Zhang
Author Affiliations
  • Key Laboratory of Thermal Management and Energy Utilization of Aircraft, Ministry of Industry and Information Technology, College of Energy and Power, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • show less
    Figures & Tables(16)
    (a) Diverter nozzle ejector infrared suppressor;(b) Top view of infrared suppressor;(c) Diverter nozzle (tail perspective)
    Outlet structural parameters of diverter nozzle
    Schematic diagram of the computational domain
    Computed results of Infrared suppressor pumping coefficient and total pressure recovery coefficient under different grid numbers
    Schematic diagram of infrared detection position distribution
    Schematic diagram of experimental system
    Photograph of diverter nozzle (tail perspective)
    Photograph of experimental system
    Comparison of experimental and numerical simulation results of experimental model temperature distribution
    The influence of the diverter nozzle outlet configuration on the pumping coefficient and total pressure recovery coefficient of the infrared suppressor
    Outlet temperature distribution of the infrared suppressor mixing tube
    Wall surface temperature distribution of the infrared suppressor external mixing tube
    3-5 μm band infrared radiation intensity distribution
    8-14 μm band infrared radiation intensity distribution
    • Table 1. Pumping coefficient of experimental model

      View table
      View in Article

      Table 1. Pumping coefficient of experimental model

      ModelExperimentSimulationDeviation
      Origin0.9880.9751.32%
      Lobe_10.8960.9253.24%
      Lobe_20.9811.0183.77%
    • Table 2. Infrared radiation intensity of experimental model

      View table
      View in Article

      Table 2. Infrared radiation intensity of experimental model

      Model3-5 μm infrared radiation intensity/W·sr–18-14 μm infrared radiation intensity/W·sr–1
      ExperimentSimulationDeviationExperimentSimulationDeviation
      Origin0.4070.4295.41%3.2853.1872.98%
      Lobe_10.4200.4363.81%2.9583.0733.89%
      Lobe_20.3580.3816.42%2.4642.5945.28%
    Tools

    Get Citation

    Copy Citation Text

    Jiadong Du, Yong Shan, Jingzhou Zhang. Numerical and experimental research on the effect of outlet structural parameters of diverter nozzle on infrared suppressor performance[J]. Infrared and Laser Engineering, 2024, 53(2): 20230459

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Jul. 28, 2023

    Accepted: --

    Published Online: Mar. 27, 2024

    The Author Email:

    DOI:10.3788/IRLA20230459

    Topics