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AN EXTENSION OF THE SMAC ALGORITHM FOR THERMAL NON-EQUILIBRIUM TWO-PHASE FLOWS OVER UNSTRUCTURED NON-STAGGERED GRIDS  

Park, I.K. (한국원자력연구원)
Yoon, H.Y. (한국원자력연구원)
Cho, H.K. (한국원자력연구원)
Kim, J.T. (한국원자력연구원)
Jeong, J.J. (한국원자력연구원)
Publication Information
Journal of computational fluids engineering / v.13, no.3, 2008 , pp. 51-61 More about this Journal
Abstract
The SMAC (Simplified Marker And Cell) algorithm is extended for an application to thermal non-equilibrium two-phase flows in light water nuclear reactors (LWRs). A two-fluid three-field model is adopted and a multi-dimensional unstructured grid is used for complicated geometries. The phase change and the time derivative terms appearing in the continuity equations are implemented implicitly in a pressure correction equation. The energy equations are decoupled from the momentum equations for faster convergence. The verification of the present numerical method was carried out against a set of test problems which includes the single and the two-phase flows. The results are also compared to those of the semi-implicit ICE method, where the energy equations are coupled with the momentum equation for pressure correction.
Keywords
Numerical method; SMAC; Two-fluid model; Unstructured grid;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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