Author(s)

N. I. Kolev

Abstract

The paper demonstrates that more useful information can be extracted from the boiling analysis by consistently incorporating gross turbulence characteristics and appropriate local volume and time averaging. Keywords: heat transfer, nucleate boiling, flow boiling. 1 Introduction Common practice in thermal engineering today is to use empirical correlations for heat transfer. Advances in the knowledge like turbulence modeling in two phase flow, tracing the history of origination of bubbles, droplets etc., dynamic two-phase flow pattern recognition etc., require more information from the heat transfer models like haw to consider the deviation from the developed turbulence, haw to provide internal characteristics of boiling like bubble departure diameters and frequencies and others. This paper demonstrates that more information can be exhausted from the analysis by consistently incorporating even of gross turbulence characteristics in the analysis and appropriate local volume and time averaging.

Keywords

heat transfer, nucleate boiling, flow boiling.