Simultaneous determination of reference free-stream temperature and convective heat transfer coefficients

자유흐름온도와 대류열전달계수를 동시에 측정할 수 있는 실험 방법에 대한 연구

This paper deals with the development of a new method that can obtain heat transfer coefficient and reference tree stream temperature simultaneously. The method is based on transient heat transfer experiments using two narrow-band TLCs. The method is validated through error analysis in terms of the random uncertainties in the measured temperatures. It is shown how the uncertainties in heat transfer coefficient and tree stream temperature can be reduced. The general method described in this paper is applicable to many heat transfer models with unknown free stream temperature.