한국추진공학회:학술대회논문집 (Proceedings of the Korean Society of Propulsion Engineers Conference)

한국추진공학회 (The Korean Society of Propulsion Engineers)
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Heat Transfer Characteristic of Axisymmetric Under-expanded Impinging Jet on a Flat Surface

  • M. S. Yu (Yonsei University) ;
  • Kim, B. B. (LG Cable Lt) ;
  • H. H Cho (Yonsei Universit) ;
  • K. Y. Hwang (Agency for Defense Development Yonsei Universit) ;
  • J. C. Bae (Agency for Defense Development Yonsei University)
  • 발행 : 2004.03.01
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초록

An experimental study has been carried out to examine heat-transfer characteristics of an axisymmetric, under-expanded, sonic jet impinging on a flat plate and the local measurement of surface pressures and heat transfer coefficients on a plate have been achieved together with a visualization test of shock structure in a jet. As a result, it has been found that the Nusselt number distribution has different aspects depending on the under-expansion ratios and the nozzle-to-plate distances.

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