Infrared and Laser Engineering, Volume. 52, Issue 1, 20220333(2023)

Influence of the discharge port structure on infrared characteristics of underwater vehicle thermal jet

Chengzhe Gao, Yongcheng Du*, and Li Yang
Author Affiliations
  • Academy of Power Engineering, Naval University of Engineering, Wuhan 430000, China
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    Figures & Tables(19)
    Grid division schematic diagram of fluid computing domain
    Grid independence test
    Structure diagram of different radius ratio oval discharge ports
    Flow streamline of thermal jet from circle discharge port
    Local velocity vector diagram of thermal jet from circle discharge port
    Surface temperature contour of thermal jet from circle discharge port
    Flow streamline of thermal jet from radius ratio 4∶25, 25∶4 oval discharge ports
    Experimental diagram
    Experimental pool
    Controller of trailer platform
    Model of underwater vehicle
    Trajectory of thermal jet from circle discharge port
    Surface temperature contour of thermal jet from circle discharge port
    Surface maximum temperature difference of thermal jet from different radius ratio oval discharge ports
    Structure of discharge multiport
    Flow streamline of thermal jet from discharge multiport
    Floating height of thermal jet from discharge multiport
    • Table 1. Structure parameters of different radius ratio oval discharge ports

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      Table 1. Structure parameters of different radius ratio oval discharge ports

      NumberRadius in Z-axis/m Radius in X-axis/m Radius ratio
      Str 10.0040.0254∶25
      Str 20.0050.021∶4
      Str 30.0080.012516∶25
      Str 40.010.011∶1
      Str 50.01250.00825∶16
      Str 60.020.0054∶1
      Str 70.0250.00425∶4
    • Table 2. Surface temperature value of thermal jet from different radius ratio oval discharge ports

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      Table 2. Surface temperature value of thermal jet from different radius ratio oval discharge ports

      NumberPeak temperature/ K Diffusion distance in X-axis/m Diffusion distance in Y-axis/m
      Str 1293.0712.1520.521
      Str 2293.1092.1400.580
      Str 3293.1012.1190.539
      Str 4293.1482.1380.794
      Str 5293.1002.1290.541
      Str 6293.1522.2130.586
      Str 7293.1962.3330.589
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    Chengzhe Gao, Yongcheng Du, Li Yang. Influence of the discharge port structure on infrared characteristics of underwater vehicle thermal jet[J]. Infrared and Laser Engineering, 2023, 52(1): 20220333

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    Paper Information

    Category: Infrared technology and application

    Received: May. 10, 2022

    Accepted: --

    Published Online: Feb. 9, 2023

    The Author Email:

    DOI:10.3788/IRLA20220333

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