Volume 22 Issue 12
Dec.  2007
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ZHANG Bo, JI Hong-hu, LUO Ming-dong, HUANG Wei, CAI Xu, GAO Chao. Experimental investigation of infrared suppressing characteristics of rectangular nozzles with large aspect ratio[J]. Journal of Aerospace Power, 2007, 22(12): 1994-1999.
Citation: ZHANG Bo, JI Hong-hu, LUO Ming-dong, HUANG Wei, CAI Xu, GAO Chao. Experimental investigation of infrared suppressing characteristics of rectangular nozzles with large aspect ratio[J]. Journal of Aerospace Power, 2007, 22(12): 1994-1999.
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Experimental investigation of infrared suppressing characteristics of rectangular nozzles with large aspect ratio

  • College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • Received Date: 2007-04-24
  • Rev Recd Date: 2007-09-21
  • Publish Date: 2007-12-28
    Abstract
  • The infrared suppressing characteristics of five rectangular convergent nozzles with different aspect ratios were investigated experimertey.The aspect ratio of the rectangular nozzles is 1,4,8,12,and 16,named AR1~AR16 respectively,while the axisymmetric nozzle is named AR0.The results indicate that infrared radiation from rectangular nozzle decreases with the increase of detection angle,and the magnitude of infrared radiation is smaller than axisymmetric one,and would accelerate with the rise of aspect ratio.

     

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