Heat Transfer to Liquid Metals Flowing in Asymmetrically Heated Channels

Abstract

Abstract This paper is a brief extension utilizing basic ideas presented in an earlier paper by R. C. Martinelli (1). Heat transfer to a fluid in turbulent flow between two plane parallel walls is discussed for the case of an asymmetrically heated system in which the entire heat flux is transferred at one of the walls and no heat passes through the other. An annulus for which the ratio of diameters approaches unity may approximate this case in the limit. A few remarks are made regarding experiments which might yield information on the variation of eddy diffusivity near the center line of a channel, and a method is presented for predicting heat-transfer coefficients for asymmetrical heat-transfer systems. Since the same assumptions used by Martinelli are applied in this paper, and since the treatment is similar, this work is considered as an extension only, and it is expected that the reader should have a working knowledge of Martinelli’s paper in order to follow the ideas presented here.