Quentin Wargnier
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View article: Time-Adaptive PIROCK Method with Error Control for Multi-Fluid and Single-Fluid MHD Systems
Time-Adaptive PIROCK Method with Error Control for Multi-Fluid and Single-Fluid MHD Systems Open
The solar atmosphere is a complex environment with diverse species and varying ionization states, especially in the chromosphere, where significant ionization variations occur. This region transitions from highly collisional to weakly coll…
View article: The Impact of Multifluid Effects in the Solar Chromosphere on the Ponderomotive Force under SE and NEQ Ionization Conditions
The Impact of Multifluid Effects in the Solar Chromosphere on the Ponderomotive Force under SE and NEQ Ionization Conditions Open
The ponderomotive force has been suggested to be the main mechanism to produce the so-called first ionization potential (FIP) effect—the enrichment of low-FIP elements observed in the outer solar atmosphere, in the solar wind, and in solar…
View article: Multifluid Simulations of Upper-chromospheric Magnetic Reconnection with Helium–Hydrogen Mixture
Multifluid Simulations of Upper-chromospheric Magnetic Reconnection with Helium–Hydrogen Mixture Open
Our understanding of magnetic reconnection (MR) under chromospheric conditions remains limited. Recent observations have demonstrated the important role of ion–neutral interactions in the dynamics of the chromosphere. Furthermore, the comp…
View article: Detailed Description of the Collision Frequency in the Solar Atmosphere
Detailed Description of the Collision Frequency in the Solar Atmosphere Open
This work aims to provide an accurate description and calculations of collision frequencies in conditions relevant to the solar atmosphere. To do so, we focus on the detailed description of the collision frequency in the solar atmosphere b…
View article: Ebysus, a Multi-Fluid Multi-Species (MFMS) code: Application to magnetic reconnection in the solar atmosphere
Ebysus, a Multi-Fluid Multi-Species (MFMS) code: Application to magnetic reconnection in the solar atmosphere Open
<p>The solar atmosphere is composed of many species with a large number of ionization levels. Depending on the region considered, the plasma can be partially or fully ionized, weakly or strongly magnetized, weakly or strongly collisi…
View article: Multicomponent fluid model for two-temperature plasmas derived from kinetic theory : application to magnetic reconnection
Multicomponent fluid model for two-temperature plasmas derived from kinetic theory : application to magnetic reconnection Open
This contribution deals with the fluid modeling of multicomponent magnetized plasmas in thermo-chemical non-equilibrium from the partially- to fully-ionized collisional regimes, aiming at the predictive simulation of magnetic reconnection …