Proceedings of the Korean Society of Propulsion Engineers Conference (한국추진공학회:학술대회논문집)
- 2004.03a
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- Pages.795-801
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- 2004
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- 1975-342X(pISSN)
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)
- Published : 2004.03.01
Abstract
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.