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Samuel Kokh

 

DEN/DANS/DM2S/STMF/LMEC

Bâtiment 454 - PC 47

CEA Saclay

91191 Gif-sur-Yvette cedex

 

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I am a permanent CEA staff member and I formely hold an Applied Mathematics research position at Maison de la simulation from 2013 to 2016 (position on the leave). I am now working at DEN/DANS/DM2S/STMF/LMEC.

 

My researchgate profile page

 

News and Events

Research Activities

Research interests

Hyperbolic systems of conservation laws, Finite Volume Methods; Complex Flows Simulation; Interface Flows; Compressible Flows; Low Mach Flows; Lagrange-Remap Discretization; Relaxation Methods; Phase Change Modelling; Parallel Computing

 

Publications in journals

  1. F. Drui, A. Larat, S. Kokh, M. Massot, "Small-scale kinematics of two-phase flows: identifying relaxation processes in separated- and dispersed-flow models" (the title of this paper may change), accepted for publication in Journal of Fluid Mechanics.
  2. P. Tremblin, T. Padioleau, M. W. Phillips, G. Chabrier, I. Baraffe, S. Fromang, E. Audit, H. Bloch, A. J. Burgasser, B. Drummond, M. González, P. Kestener, S. Kokh, P.-O. Lagage and M. Stauffert. "Thermo-compositional Diabatic Convection in the Atmospheres of Brown Dwarfs and in Earth’s Atmosphere and Oceans", The Astrophysical Journal 876.2 (mai 2019), p. 144.
  3. T. Padioleau, P. Tremblin, E. Audit, P. Kestener et S. Kokh. "A High-performance and Portable All-Mach Regime Flow Solver Code with Well-balanced Gravity. Application to Compressible Convection", The Astrophysical Journal 875.2 (avr. 2019), p. 128.
  4. Ch. Grenier, H. Anbergen, V. Bense, Q. Chanzy, E. Coon, N. Collier, F. Costard, M. Ferry, A. Frampton, J. Frederick, J. Gonçalvès, J. Holmén, A. Jost, S. Kokh, B. Kurylyk, J. McKenzie, J. Molson, E. Mouche, L. Orgogozo, R. Pannetier, A. Rivière, N. Roux, W. Rühaak, J. Scheidegger, J.-O. Selroos, R. Therrien, P. Vidstrand et C. Voss (2018). "Groundwater flow and heat transport for systems undergoing freeze-thaw : Intercomparison of numerical simulators for 2D test cases". Advances in Water Resources 114, pp. 196-218.
  5. C. Chalons, M. Girardin et S. Kokh (2017). "An all-regime Lagrange-Projection like scheme for 2D homogeneous models for two-phase flows on unstructured meshes". Journal of Computational Physics 335, pp. 885–904.
  6. C. Chalons, P. Kestener, S. Kokh et M. Stauffert (2017). "A large time-step and well-balanced Lagrange-projection type scheme for the shallow water equations". Comm. in Math. Sciences 15.3, pp. 765-788.
  7. C. Chalons, M. Girardin and S. Kokh (2016), "An all-regime Lagrange-Projection like scheme for the gas dynamics equations on unstructured meshes", Comm. in Comp. Phys. 20.1, pp. 188-233
  8. M. Billaud Friess and S. Kokh (2014), "Simulation of sharp interface multi-material flows involving an arbitrary number of components through an extended five-equation model ", Journal of Computational Physics . Vol. 273(0), pp. 488 - 519.
  9. C. Chalons, M. Girardin and S. Kokh (2013), "Large time step and asymptotic preserving numerical schemes for the gas dynamics equations with source terms.", SIAM J. Sci. Comput. Vol. 35(6), pp. a2874-a2902.
  10. V. Faucher and S. Kokh (2013), "Extended Vofire algorithm for fast transient fluid-structure dynamics with liquid-gas flows and interfaces", Journal of Fluids and Structures . Vol. 39(0), pp. 102-125.
  11.  G. Faccanoni, S. Kokh and G. Allaire (2012), "Modelling and simulation of liquid-vapor phase transition in compressible flows based on thermodynamical equilibrium", M2AN. Vol. 46, pp. 1029-1054.
  12. G. Faccanoni, S. Kokh and G. Allaire (2010), "Approximation of Liquid-Vapor Phase Transition for Compressible Fluids with Tabulated EOS", C. R. Acad. Sci. Paris, Série I. Vol. t. 348, pp. 473-478.
  13. S. Kokh and F. Lagoutière (2010), "An Anti-Diffusive Numerical Scheme for the Simulation of Interfaces between Compressible Fluids by Means of a Five-Equation Model", J. Comp. Phys.. Vol. 229(8), pp. 2773-2809.
  14. G. Faccanoni, S. Kokh and G. Allaire (2007), "A strictly hyperbolic equilibrium phase transition model", C. R. Acad. Sci. Paris, Série~I. Vol. t. 344, pp. 135-140.
  15. F. Caro, F. Coquel, D. Jamet and S. Kokh (2006), "A simple finite-volume method for compressible isothermal two-phase flows simulation", Int. J. Finite Volumes. Vol. 3(1)
  16. G. Allaire, S. Clerc and S. Kokh (2002), "A five-equation model for the simulation of interfaces between compressible fluids", J. Comp. Phys.. Vol. 181, pp. 577-616.
  17. G. Allaire, S. Clerc and S. Kokh (2000), "A Five-Equation Model for the Numerical Simulation of Interfaces in Two-Phase Flows", C. R. Acad. Sci.. Vol. t. 331(12), pp. 1017-1022".

 

Publications in conference proceedings

  1. F. Drui, A. Fikl, P. Kestener, S. Kokh, A. Larat, V. Le Chenadec and M. Massot. "Experimenting with the p4est library for AMR simulations of two-phase flows". In : t. 53. http://dx.doi.org/10.1051/proc/201653014. 2016, pp. 232-247.
  2. M. Billaud Friess and S. Kokh (2012), "An anti-diffusive Lagrange-Remap scheme for multi-material compressible flows with an arbitrary number of components", In ESAIM: PROCEEDINGS Congrés SMAI. Vol. 35, pp. 203-209.
  3. M. Billaud-Friess, B. Boutin, G. Faccanoni, F. Caetano, S. Kokh, F. Lagoutière and L. Navoret (2011), "A Second Order Anti-Diffusive Lagrange-Remap Scheme for Two-Component Flows", In ESAIM~: Proc., pp. 149-162.
  4. C. Chalons, S. Kokh and N. Spillane (2011), "Large time-step numerical scheme for the seven-equation model of compressible two-phase flows", In Proceedings in Mathematics, FVCA 6. Vol. 4(1), pp. 225-233.
  5. G. Faccanoni, S. Kokh and G. Allaire (2008), "Numerical simulation with finite volume of a dynamic liquid-vapour phase transition", In Finite volumes for complex applications V, Problems and perspectives. , pp. 391-398.
  6. S. Kokh and F. Lagoutière (2008), "An Anti-Diffusive Method for Simulating Compressible Two-Phase Flows with Interfaces", In Finite volumes for complex applications V, Problems and perspectives. , pp. 519-526.
  7. F. Caro, F. Coquel, D. Jamet and S. Kokh (2005), "DINMOD: a Diffuse Interface Model for Two-Phase Flows Modelling", In Numerical method for hyperbolic and kinetic problems: CEMRACS 2003.
  8. F. Caro, F. Coquel, D. Jamet and S. Kokh (2005), "Phase change simulation for isothermal compressible two-phase flows", In AIAA Comp. Fluid Dynamics. (AIAA-2005-4697)
  9. G. Allaire and S. Kokh (2000), "Numerical Simulation of 2D Two-Phase Flows with Interface", In Godunov Methods Theory and Applications.
  10. G. Allaire and S. Kokh (2000), "Simulating Interfaces in Two-Phase Flows", In Proc. AMIF-ESF Workshop Computing Methods for Two-Phase Flow.
  11. G. Allaire, S. Clerc and S. Kokh (1999), "Towards Boiling Crisis Simulation: the Level Set Method", In Nureth-9 Proceedings, San Francisco.

Publications in books

 

B. Després, S. Kokh and F. Lagoutière. "Chapter 4 - Sharpening Methods for Finite Volume Schemes".
In : Handbook of Numerical Methods for Hyperbolic ProblemsBasic and Fundamental Issues. Editor R. Abgrall and C.-W. Shu. T. 17. Handbook of Numerical Analysis. Elsevier, 2016, pp. 77-102.

 

Teaching activities

  • Cours de programmation en langage C pour le calcul scientifique, cours de l'institut Galilée (macs1)
  • Introduction to Finite Volume Methods for Hyperbolic Problems. Lecture at the Natural Science University of Ho Chi Minh City, Vietnam (coming soon)
  • Interface Capturing Methods for Multi-Phase Fluid Mechanics. Joint lecture with F. Lagoutière fir the CEA-EDF-INRIA 2014 Summer school, on Numerical Methods for Interface Problems in Fluids and Solids with Discontinuities (coming soon)
  • Lecture Least Action Principle and compressible flow modelling, Journées scientifiques du GdR MANU (Groupe de recherche CNRS 2439).
  • Introduction à la théorie des distributions, cours de l'institut Galilée (macs2)