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http://dx.doi.org/10.6112/kscfe.2015.20.2.023

DEVELOPMENT OF 2ND GENERATION ICE ACCRETION ANALYSIS PROGRAM FOR HANDLING GENERAL 3-D GEOMETRIES  

Son, Chankyu (Institute of Advanced Aerospace Technology, Seoul National Univ.)
Oh, Sejong (Dept. of Aerospace Engineering, Pusan National Univ.)
Yee, Kwanjung (Dept. of Mechanical & Aerospace Engineering, Seoul National Univ.)
Publication Information
Journal of computational fluids engineering / v.20, no.2, 2015 , pp. 23-36 More about this Journal
Abstract
The $2^{nd}$ generation ice accretion analysis program has been developed and validated for various icing conditions. The essential feature of the $2^{nd}$ generation code lies in its capability of handling general 3-D geometry and improved accuracy. The entire velocity fields are obtained based on Navier-Stokes equations in order to take the massively separated flow field into account. Unlike $1^{st}$ generation code, the droplet trajectories are calculated using Eulerian approach, which is adopted to yield appropriate collection efficiency even in the shadow region. For improved thermodynamic analysis on the surfaces, water film model and modified Messinger model are newly included in the present analysis. The ice shape for a given time step is obtained by considering the exact amount of ice accreted on the surface. Each module of the icing analysis code has been seamlessly integrated on the OpenFOAM platform. The developed code was validated against available experimental data for 2D airfoils and 3D DLR-F4. Due to the lack of experimental data, the computed results of DLR-F4 were compared with those obtained from FENSAP-ICE, which is state-of-the-art 3D icing analysis code. It was clearly shown that the present code produces comparable results to those of FENSAP-ICE, in terms of prediction accuracy and the capability of handling general 3-D geometries.
Keywords
CFD; OpenFOAM; Aircraft icing; Eulerian approach; Water film model; 2nd generation icing code;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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