Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지

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

비정렬격자 SIMPLE 알고리즘기반 이상유동 수치해석 기법

  • Published : 2008.12.31
Download PDF
⟨ Previous Next ⟩

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

References

  1. 2005, Dai, M. and Schmidt, D.P., "Adaptive tetrahedral meshing in free-surface flow," J. of Comp. Phys., Vol.208, pp.228-252 https://doi.org/10.1016/j.jcp.2005.02.012
  2. 1999, Scardovelli, R. and Zaleski, S., "Direct numerical simulation of free-surface and interfacial Flow," Annual Review of Fluid Mechanics, Vol.31, pp.567-603 https://doi.org/10.1146/annurev.fluid.31.1.567
  3. 2005, Yu, J., Sakai, S. and Sethian, J., "A coupled quadrilateral grid level set projection method applied to ink jet simulation," J. of Comp. Phys., Vol.206, pp.227-251 https://doi.org/10.1016/j.jcp.2004.12.012
  4. 1998, Kunz, R., et al., "A Coupled Phasic Exchange Algorithm for Three-dimensional Multi-field Analysis of Heated Flows with Mass Transfer," Computers & Fluids, Vol.27, No.7, pp.741-768 https://doi.org/10.1016/S0045-7930(97)00064-9
  5. 2000, Antal, S.P., et al., "Development of a Next Generation Computer Code for the Prediction of Multicomponent Multiphase Flows," Int. Meeting on Trends in Numerical and Physical Modeling for Industrial Multiphase Flow
  6. 2007, Jeong, J.J., et al., "Hydrodynamic Solver for a Transient, Two-fluid, Three-field Model on Unstructured Grids," 한국전산유체공학회, 제12권, 제4호, pp.44-53
  7. 2001, Darwish, M., Moukalled, F. and Sekar, B., "A Unified Formulation of the Segregated Class of Algorithm for Multifluid Flow at All Speeds," Numerical Heat Transfer B, Vol.40, pp.99-137 https://doi.org/10.1080/104077901750475887
  8. 2006, 김종태, 탁남일, 김상백, 김민환, 이원재, "이중시간적분법을 이용한 순차적 유동해석 기법," 한국전산유체공학회 추계학술회의 논문집, pp.31-35
  9. 2002, 김수형, 김희철, "IAPWS-IF97을 이용한 증기표 프로그램," 한국원자력연구원 기술보고서 KAERI /TR-2314/2002
  10. 2006, Stadke, H., Gasdynamic Aspects of Two-Phase Flow, Wiley-VCH Verlag GmbH & Co