Next projects B review : May 15 2019. Proposal must be submitted before April 30 2019.
Publications and communications which have benefited of mésocentre resources should contain : « This work was granted access to the HPC resources of Aix-Marseille Université financed by the project Equip@Meso (ANR-10-EQPX-29-01) of the program « Investissements d’Avenir » supervised by the Agence Nationale de la Recherche.»
Recent publications :
2019 |
B Favier; J Purseed; L Duchemin Rayleigh–Bénard convection with a melting boundary In: Journal of Fluid Mechanics, 858 , pp. 437–473, 2019. @article{favier_purseed_duchemin_2019b, title = {Rayleigh–Bénard convection with a melting boundary}, author = {B Favier and J Purseed and L Duchemin}, doi = {10.1017/jfm.2018.773}, year = {2019}, date = {2019-01-01}, journal = {Journal of Fluid Mechanics}, volume = {858}, pages = {437–473}, publisher = {Cambridge University Press}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Hassan Denawi; Mathieu Abel; Roland Hayn Magnetic Polymer Chains of Transition Metal Atoms and Zwitterionic Quinone In: The Journal of Physical Chemistry C, 123 (7), pp. 4582-4589, 2019. @article{doi:10.1021/acs.jpcc.8b12433, title = {Magnetic Polymer Chains of Transition Metal Atoms and Zwitterionic Quinone}, author = {Hassan Denawi and Mathieu Abel and Roland Hayn}, url = {https://doi.org/10.1021/acs.jpcc.8b12433}, doi = {10.1021/acs.jpcc.8b12433}, year = {2019}, date = {2019-01-01}, journal = {The Journal of Physical Chemistry C}, volume = {123}, number = {7}, pages = {4582-4589}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
M Valentinuzzi; Y Marandet; H Bufferand; G Ciraolo; P Tamain Two-phases hybrid model for neutrals In: Nuclear Materials and Energy, 18 , pp. 41 - 45, 2019, ISSN: 2352-1791. @article{VALENTINUZZI201941, title = {Two-phases hybrid model for neutrals}, author = {M Valentinuzzi and Y Marandet and H Bufferand and G Ciraolo and P Tamain}, url = {http://www.sciencedirect.com/science/article/pii/S2352179118301856}, doi = {https://doi.org/10.1016/j.nme.2018.12.003}, issn = {2352-1791}, year = {2019}, date = {2019-01-01}, journal = {Nuclear Materials and Energy}, volume = {18}, pages = {41 - 45}, abstract = {A new hybrid fluid-kinetic code for the atoms has been developed and implemented in Soledge2D. The new code package is able to simulate the evolution of ions, electrons, molecules and two different populations (or phases) of atoms in realistic 2D geometry. Simulations in ITER geometry show that, with a fluid breakdown parameter of up to 0.1÷0.5, only negligible differences are found with respect to fully-kinetic Soledge2D–Eirene cases, while at the same time improving the computational performances of the code package.}, keywords = {}, pubstate = {published}, tppubtype = {article} } A new hybrid fluid-kinetic code for the atoms has been developed and implemented in Soledge2D. The new code package is able to simulate the evolution of ions, electrons, molecules and two different populations (or phases) of atoms in realistic 2D geometry. Simulations in ITER geometry show that, with a fluid breakdown parameter of up to 0.1÷0.5, only negligible differences are found with respect to fully-kinetic Soledge2D–Eirene cases, while at the same time improving the computational performances of the code package. |
D M Fan; Y Marandet; P Tamain; H Bufferand; G Ciraolo; Ph. Ghendrih; E Serre In: Nuclear Materials and Energy, 18 , pp. 105 - 110, 2019, ISSN: 2352-1791. @article{FAN2019105, title = {Effect of turbulent fluctuations on neutral particles transport with the TOKAM3X-EIRENE turbulence code}, author = {D M Fan and Y Marandet and P Tamain and H Bufferand and G Ciraolo and Ph. Ghendrih and E Serre}, url = {http://www.sciencedirect.com/science/article/pii/S2352179118301200}, doi = {https://doi.org/10.1016/j.nme.2018.12.011}, issn = {2352-1791}, year = {2019}, date = {2019-01-01}, journal = {Nuclear Materials and Energy}, volume = {18}, pages = {105 - 110}, abstract = {The effect of turbulent fluctuations on the transport of neutral particles (atoms, molecules) in tokamak plasmas is investigated with the 3D global turbulence code TOKAM3X-EIRENE in limiter geometry. The statistical properties of turbulent fields relevant to this work are discussed, including the recycling flux. The neutral particle transport is recalculated on the mean field plasma, and compared to the mean neutral particle density/flows obtained from the turbulent simulation, so as to assess the effects of the fluctuations, in particular on the ionization balance. The latter effects are remarkably modest in the simulation presented here, but are expected to become more and more pronounced as the high recycling regime is approached, in particular because the plasma temperature becomes low enough so that ionization is strongly non-linear. However, the turbulent fluctuations in the SOL do have a substantial effect on the neutral densities on the low field side of the limiter, including in the confined plasma. These effects are traced back to non-linearities in the plasma flux at the wall, and the fluctuations in the latter are identified as an important contributor both to neutral particle density fluctuations and to deviations from mean neutral particle density/flows in the turbulent simulation with respect to the same quantities recalculated on the mean plasma fields.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The effect of turbulent fluctuations on the transport of neutral particles (atoms, molecules) in tokamak plasmas is investigated with the 3D global turbulence code TOKAM3X-EIRENE in limiter geometry. The statistical properties of turbulent fields relevant to this work are discussed, including the recycling flux. The neutral particle transport is recalculated on the mean field plasma, and compared to the mean neutral particle density/flows obtained from the turbulent simulation, so as to assess the effects of the fluctuations, in particular on the ionization balance. The latter effects are remarkably modest in the simulation presented here, but are expected to become more and more pronounced as the high recycling regime is approached, in particular because the plasma temperature becomes low enough so that ionization is strongly non-linear. However, the turbulent fluctuations in the SOL do have a substantial effect on the neutral densities on the low field side of the limiter, including in the confined plasma. These effects are traced back to non-linearities in the plasma flux at the wall, and the fluctuations in the latter are identified as an important contributor both to neutral particle density fluctuations and to deviations from mean neutral particle density/flows in the turbulent simulation with respect to the same quantities recalculated on the mean plasma fields. |
F Nespoli; H Bufferand; M Valentinuzzi; N Fedorczak; G Ciraolo; E Serre; Y Marandet; R Maurizio; De H Oliveira; B Labit; M Komm; M Faitsch; S Elmore Application of a two-fluid two-point model to SolEdge2D-EIRENE simulations of TCV H-mode plasma In: Nuclear Materials and Energy, 18 , pp. 29 - 34, 2019, ISSN: 2352-1791. @article{NESPOLI201929, title = {Application of a two-fluid two-point model to SolEdge2D-EIRENE simulations of TCV H-mode plasma}, author = {F Nespoli and H Bufferand and M Valentinuzzi and N Fedorczak and G Ciraolo and E Serre and Y Marandet and R Maurizio and De H Oliveira and B Labit and M Komm and M Faitsch and S Elmore}, url = {http://www.sciencedirect.com/science/article/pii/S2352179118301819}, doi = {https://doi.org/10.1016/j.nme.2018.11.026}, issn = {2352-1791}, year = {2019}, date = {2019-01-01}, journal = {Nuclear Materials and Energy}, volume = {18}, pages = {29 - 34}, abstract = {The edge and scrape-off layer (SOL) plasma of the inter-ELM phase of an H-mode discharge from the TCV tokamak is modeled with the transport code SolEdge2D-EIRENE (Bufferand et al. Nuclear Fusion 55 (2015)). The numerical simulations, in presence and in absence of C impurities sputtered from the first wall, are presented and compared with the experiments, finding an overall good agreement. The application of the standard two-point model to the simulation results leads to an apparent momentum gain along the divertor leg. A two-fluid two-point model featuring thermally decoupled ions and electrons is introduced and applied to the simulation results, overcoming this apparent discrepancy.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The edge and scrape-off layer (SOL) plasma of the inter-ELM phase of an H-mode discharge from the TCV tokamak is modeled with the transport code SolEdge2D-EIRENE (Bufferand et al. Nuclear Fusion 55 (2015)). The numerical simulations, in presence and in absence of C impurities sputtered from the first wall, are presented and compared with the experiments, finding an overall good agreement. The application of the standard two-point model to the simulation results leads to an apparent momentum gain along the divertor leg. A two-fluid two-point model featuring thermally decoupled ions and electrons is introduced and applied to the simulation results, overcoming this apparent discrepancy. |
H Bufferand; P Tamain; S Baschetti; J Bucalossi; G Ciraolo; N Fedorczak; Ph. Ghendrih; F Nespoli; F Schwander; E Serre; Y Marandet In: Nuclear Materials and Energy, 18 , pp. 82 - 86, 2019, ISSN: 2352-1791. @article{BUFFERAND201982, title = {Three-dimensional modelling of edge multi-component plasma taking into account realistic wall geometry}, author = {H Bufferand and P Tamain and S Baschetti and J Bucalossi and G Ciraolo and N Fedorczak and Ph. Ghendrih and F Nespoli and F Schwander and E Serre and Y Marandet}, url = {http://www.sciencedirect.com/science/article/pii/S2352179118302035}, doi = {https://doi.org/10.1016/j.nme.2018.11.025}, issn = {2352-1791}, year = {2019}, date = {2019-01-01}, journal = {Nuclear Materials and Energy}, volume = {18}, pages = {82 - 86}, abstract = {A 3D multispecies fluid model has been implemented in the SOLEDGE-TOKAM suite of codes to address Scrape-off layer turbulent impurity transport. Zhdanov closure is used to address multi-component plasma modeling without any mass ordering or trace impurity assumption. Thanks to immersed boundary conditions, up to the wall simulations with non-axisymmetric plasma facing components are performed, in particular in the WEST configuration. A first proof of principle of interchange turbulence simulation of a Deuterium+Carbon plasma is also reported.}, keywords = {}, pubstate = {published}, tppubtype = {article} } A 3D multispecies fluid model has been implemented in the SOLEDGE-TOKAM suite of codes to address Scrape-off layer turbulent impurity transport. Zhdanov closure is used to address multi-component plasma modeling without any mass ordering or trace impurity assumption. Thanks to immersed boundary conditions, up to the wall simulations with non-axisymmetric plasma facing components are performed, in particular in the WEST configuration. A first proof of principle of interchange turbulence simulation of a Deuterium+Carbon plasma is also reported. |
