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International Journal of Aerospace Engineering
Volume 2018, Article ID 5362541, 16 pages
https://doi.org/10.1155/2018/5362541
Research Article

Numerical Simulation of Unsteady Conjugate Heat Transfer of Electrothermal Deicing Process

Laboratory of Fundamental Science on Ergonomics and Environmental Control, Beihang University, Beijing 100191, China

Correspondence should be addressed to Xiaobin Shen; nc.ude.aaub@niboaixnehs

Received 2 June 2017; Accepted 28 November 2017; Published 29 January 2018

Academic Editor: Paul Williams

Copyright © 2018 Zuodong Mu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A novel 3-D unsteady model of in-flight electrothermal deicing process is presented in this paper to simulate the conjugate mass and heat transfer phenomena of water film runback, phase change, and solid heat conduction. Mathematical models of water film runback and phase change are established and solved by means of a loosely coupled method. At the current time step, solid heat conduction, water film runback, and phase change are iteratively solved until the heat boundary condition reaches convergence, then the temperature distribution and ice shape at the moment are obtained, and the calculation of the next time step begins subsequently. A deicing process is numerically simulated using the present model following an icing tunnel experiment, and the results match well with those in the literatures, which validate the present model. Then, an in-flight deicing process is numerically studied to analyze the effect of heating sequence.