The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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A Study on Aerodynamic Characteristics with the Supersonic Nozzle Quantity

초음속노즐 수량 변화에 따른 공기역학적 특성의 연구

  • Lee, Jong-Hoon (Chungnam national university, Dept' of mechanical engineering) ;
  • Kim, Kyoung-Ryun (Chungnam national university, Dept' of mechanical engineering) ;
  • Park, Jong-Ho (Chungnam national university, School of mechanical engineering)
  • Received : 2015.07.22
  • Accepted : 2015.09.09
  • Published : 2015.10.01
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Abstract

The objective of this paper is to investigate the flow characteristics of the multi nozzle. The configurations of the single, the 3- and the 6-nozzle were selected under Mach number of 2.5. Under-expanded pressure ratio such as 1.2, 1.6 and 2.0 were selected to elucidate interference of the free jet. The flow visualization was carried out with the Schlieren system and a supersonic cold-flow system. Also, the flow characteristics were studied computationally with the density measurements. Reasonable agreement between experimental and theoric equation has been achieved qualitatively.

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References

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