Nonlinear least squares - An aid to thermal property determination

D. M. CURRY, S. D. WILLIAMS
1973 AIAA Journal  
Nonlinear least squares techniques are applicable to solving problems associated with thermal property determination. Of the techniques discussed in this paper, the method of Peckham is shown to be the most efficient. Effective thermal conductivity values were determined using in-depth thermal response data from both atmospheric and reduced pressure tests. As shown, the predicted values compare favorably with measured thermal conductivity results. The results of this study show that the
more » ... ow that the combination of nonlinear least squares and thermal analysis offers a more efficient tool for use in the design of experimental testing and in obtaining reliable thermal property information.
doi:10.2514/3.6808 fatcat:25jjqcfknzggnkzm4w73to57hu