Turbulent Natural Convection Heat Transfer to Gases at High Wall Temperatures

Abstract

In this paper, a model is presented that provides good agreement when compared with the correlations of Pirovano et al. and Siebers et al. within the parametric range of the existing data. However, the model disagrees with models suggesting an explicit temperature correction term, such as the model of Siebers et al., outside the parametric range of the data. The major disagreement in the two types of models arises when they are applied to the conditions when hot gases are cooled by natural convection while in contact with a cold wall (T[sub w]/T[sub a] < 1). However, there are no pertinent data to verify the applicability of either model to such conditions. 5 refs., 1 fig.