Open Access

ARTICLE

Numerical Simulation of an Airfoil Electrothermal-Deicing-System in the Framework of a Coupled Moving-Boundary Method

Miao Xin, Guo Zhong, Yihua Cao^*

School of Aeronautic Science and Engineering, Beihang University, Beijing, 100191, China

* Corresponding Author: Yihua Cao. Email:

Fluid Dynamics & Materials Processing 2020, 16(6), 1063-1092. https://doi.org/10.32604/fdmp.2020.013378

Received 04 August 2020; Accepted 19 October 2020; Issue published 17 December 2020

Abstract

A numerical method for the analysis of the electrothermal deicing system for an airfoil is developed taking into account mass and heat exchange at the moving boundary that separates the water film created due to droplet impingement and the ice accretion region. The method relies on a Eulerian approach (used to capture droplet dynamics) and an unsteady heat transfer model (specifically conceived for a multilayer electrothermal problem on the basis of the enthalpy theory and a phase-change correction approach). Through application of the continuous boundary condition for temperature and heat flux at the coupled movingboundary, several simulations of ice accretion, melting and shedding, runback water flow and refreezing phenomena during the electrothermal deicing process are conducted. Finally, the results are verified via comparison with experimental data. A rich set of data concerning the dynamic evolution of the distribution of surface temperature, water film height and ice shape is presented and critically discussed.

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Keywords

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