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NUMERICAL METHOD FOR TWO-PHASE FLOW ANALYSIS USING SIMPLE-ALGORITHM ON AN UNSTRUCTURED MESH  

Kim, Jong-Tae (한국원자력연구원)
Park, Ik-Kyu (한국원자력연구원)
Cho, Hyung-Kyu (한국원자력연구원)
Kim, Kyung Doo (한국원자력연구원)
Jeong, Jae-Jun (한국원자력연구원)
Publication Information
Journal of computational fluids engineering / v.13, no.4, 2008 , pp. 86-95 More about this Journal
Abstract
For analyses of multi-phase flows in a water-cooled nuclear power plant, a three-dimensional SIMPLE-algorithm based hydrodynamic solver CUPID-S has been developed. As governing equations, it adopts a two-fluid three-field model for the two-phase flows. The three fields represent a continuous liquid, a dispersed droplets, and a vapour field. The governing equations are discretized by a finite volume method on an unstructured grid to handle the geometrical complexity of the nuclear reactors. The phasic momentum equations are coupled and solved with a sparse block Gauss-Seidel matrix solver to increase a numerical stability. The pressure correction equation derived by summing the phasic volume fraction equations is applied on the unstructured mesh in the context of a cell-centered co-located scheme. This paper presents the numerical method and the preliminary results of the calculations.
Keywords
Two-Phase Flow; SIMPLE Algorithm; Unstructured Mesh;
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Times Cited By KSCI : 1  (Citation Analysis)
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