The physical closure laws in the CATHARE code. CATHARE is a 2-fluid thermal-hydraulic code capable of simulating thermal and mechanical phenomena occurring in the primary and secondary circuits of PWRs for a wide variety of accidental situations. The description of the flow is essentially 1-dimensional. Closure laws concerning mass, momentum and energy exchanges between phases and between each phase and the walls are required. A set of specifically designed separate effect experiments were performed and analysed. Having regard for some development principles, correlations are established on the basis of experimental data. The mechanical transfer laws are derived first from experiments where thermal non equilibrium is negligible. Using them as a basis for further interpretation of experimental data, interfacial heat transfer laws are then developed. Wall heat transfer correlations then have to be fixed. All these steps are presented with emphasis being placed on the most recent developments. These last investigations concern the direct contact condensation, stratification model, wall friction, droplet break up and the scale effect, geometrical effect and pressure effect on interfacial friction.

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  1. Dellacherie, Stéphane; Faccanoni, Gloria; Grec, Bérénice; Penel, Yohan: Accurate steam-water equation of state for two-phase flow LMNC model with phase transition (2019)
  2. Ancellin, Matthieu; Brosset, Laurent; Ghidaglia, Jean-Michel: Numerical simulation of wave impacts with interfacial phase change: an isothermal averaged model (2018)
  3. Krasnopolsky, Boris I.; Lukyanov, Alexander A.: A conservative fully implicit algorithm for predicting slug flows (2018)
  4. Nascimento, Júlio César S.; dos Santos, Adriano; Puime Pires, Adolfo: A fully-implicit solution for the single-pressure two-fluid model with sharp discontinuities (2018)
  5. Pandare, Aditya K.; Luo, Hong: A robust and efficient finite volume method for compressible inviscid and viscous two-phase flows (2018)
  6. Panicker, N.; Passalacqua, Alberto; Fox, R. O.: On the hyperbolicity of the two-fluid model for gas-liquid bubbly flows (2018)
  7. Haimovich, Ory; Frankel, Steven H.: Numerical simulations of compressible multicomponent and multiphase flow using a high-order targeted ENO (TENO) finite-volume method (2017)
  8. Labourdette, C.; Ghidaglia, J.-M.; Redford, J. A.; Faure, S.: Accurate state variables for fluid flow simulation using quicksteam and quickmethane (2017)
  9. Krasnopolsky, B.; Starostin, A.; Osiptsov, A. A.: Unified graph-based multi-fluid model for gas-liquid pipeline flows (2016)
  10. Kuila, S.; Sekhar, T. Raja; Zeidan, D.: On the Riemann problem simulation for the drift-flux equations of two-phase flows (2016)
  11. Morin, Alexandre; Flåtten, Tore: A two-fluid four-equation model with instantaneous thermodynamical equilibrium (2016)
  12. Niu, Yang-Yao: Computations of two-fluid models based on a simple and robust hybrid primitive variable Riemann solver with AUSMD (2016)
  13. Zou, Ling; Zhao, Haihua; Zhang, Hongbin: Solving phase appearance/disappearance two-phase flow problems with high resolution staggered grid and fully implicit schemes by the Jacobian-free Newton-Krylov method (2016)
  14. D’alesio, Silvia; Dias, Frédéric; Faure, Sylvain; Ghidaglia, Jean-Michel; Labourdette, Christophe; Pougeard-Dulimbert, Thierry; Sollier, Arnaud: Violent flows in aqueous foam. II: Simulation platform and results (2015)
  15. Bernard-Champmartin, A.; Poujade, O.; Mathiaud, J.; Ghidaglia, J.-M.: Modelling of an homogeneous equilibrium mixture model (HEM) (2014)
  16. Cordier, Floraine; Degond, Pierre; Kumbaro, Anela: Phase appearance or disappearance in two-phase flows (2014)
  17. Hammer, M.; Morin, A.: A method for simulating two-phase pipe flow with real equations of state (2014)
  18. Shekari, Younes; Hajidavalloo, Ebrahim: Application of Osher and PRICE-C schemes to solve compressible isothermal two-fluid models of two-phase flow (2013)
  19. Auder, Benjamin; Fischer, Aurélie: Projection-based curve clustering (2012)
  20. Kumbaro, Anela: Simplified eigenstructure decomposition solver for the simulation of two-phase flow systems (2012)

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