Effect of Heat Flux on Droplet Entrainment Using Annular Flow Dryout Model

Author:

Ahmad Masroor1,Burlutskiy Evgeniy1,Walker Simon P.1,Hewitt Geoffrey F.1

Affiliation:

1. Imperial College London, London, UK

Abstract

Annular film dryout depends upon the competition of entrainment, deposition and evaporation processes between the droplet-laden core and wall liquid film. In this paper, effect of heat flux on droplet entrainment is analyzed by modeling different low and high pressure diabatic annular flow experiments numerically using an annular flow dryout model (AFM). Overall, the AFM predicted the experimental data reasonably accurately. It is concluded that at high pressures increasing heat flux may enhance net entrainment considerably but this effect diminishes at low pressures.

Publisher

ASMEDC

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Phenomenological modelling of film-dryout ‘critical heat flux’;Nuclear Engineering and Design;2019-12

2. Study on Critical Power Prediction of Vertical Circular Tube;JAPANESE JOURNAL OF MULTIPHASE FLOW;2014

3. Influence of a Flow Obstacle on Boiling Two-Phase Flow;TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B;2012

4. CHF in a Circumferentially Non-Uniformly Heated Tube under Low Pressure and Low Mass Flux Condition (Influence of the Magnitude of Heat Flux);TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B;2011

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