A Computational Modeling for Semi-Coupled Multiphase Flow in Atmospheric Icing Conditions

Authors

  • SungKi Jung Federal University of ABC

Abstract

A two-dimensional second-order positivity-preserving finite volume upwind scheme is developed for a semi-coupled algorithm involving the air and droplet flow fields in the Eulerian frame in which shares the grid for each phase. Special emphasizes are placed on the computational modeling, which is induced from a strongly coupled algorithm, that satisfies the strict hyperbolicity and its numerical scheme based on the HLLC solver preserving the positivity to handle multiphase flow in the Eulerian frame, respectively. The proposed modeling associated with the semi-coupled algorithm including the Navier-Stokes and droplet equations takes into account different boundary conditions on the solid surface for each phase. The verification and validation studies show that the new scheme can solve the air and droplet flow fields in fairly good agreement with the exact analytical solutions and experimental data. In particular, it accurately predicted the maximum value of the droplet impingement intensity near the stagnation region and the droplet impingement area.


Author Biography

SungKi Jung, Federal University of ABC

Dr. SungKi Jung has specialized in aerospace engineering during his extensive career.

Education
He was awared a BS in Aerospace engineering in 2003, an MS in Aerospace engineering in 2006 and a PhD in 2011 in Aerospace engineering, all from Gyeongsang National University in South Korea.

Work experience
He was a exchange student at the Nagoya university in Japan from 2001-2002 and a visiting student at the Ohio state university in USA, 2005 and a visiting researcher at the JAXA/ISAS in Japan, 2009. Also he was a senior research engineering in the Korea aerospace industries, LTD from 2011-2015.
Since 2015 he has been a visiting member of the faculty in the CECS in UFABC. 

Publications
He has published many research papers on aircraft icing, aerodynamics, computational modeling for CFD, aerospace engineering and multidiscipinary approaches.  
   Publication Detail
   His particular research interests are in the computational modeling of compressible multiphase flow and aircraft icing. 

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Published

2015-09-09

Issue

Section

Original Papers