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Alejandro Alvarez Laguna's Resume


Research interests

I work on the study of non-equilibrium plasmas under the effect of magnetic fields. My research focuses along two main axes. On the fundamental side, I develop transport models for partially-ionized plasmas based on moment closure hierarchies, also called multi-fluid models. In addition, I work on the development of numerical methods for the plasma fluid equations coupled to Maxwell's equations. This includes novel asymptotic-preserving and well-balanced schemes that are particularly relevant in order to solve the plasma dynamics in an efficient and accurate manner. On the applied side, I work on the simulation of different magnetized phenomena in partially-ionized plasmas, from plasma instabilities in magnetohydrodynamics and anomalous transport to low-pressure plasma discharges for electric propulsion applications.

 


Journal articles4 documents

  • Alejandro Alvarez-Laguna, Teddy Pichard, Thierry Magin, Pascal Chabert, Anne Bourdon, et al.. An asymptotic preserving well-balanced scheme for the isothermal fluid equations in low-temperature plasma applications. Journal of Computational Physics, Elsevier, 2020, 419, pp.109634. ⟨10.1016/j.jcp.2020.109634⟩. ⟨hal-02116610⟩
  • S. Boccelli, Thomas Charoy, Alejandro Alvarez-Laguna, P. Chabert, Anne Bourdon, et al.. Collisionless ion modeling in Hall thrusters: Analytical axial velocity distribution function and heat flux closures. Physics of Plasmas, American Institute of Physics, 2020, 27 (7), pp.073506. ⟨10.1063/5.0006258⟩. ⟨hal-02950586⟩
  • Quentin Wargnier, Alejandro Alvarez-Laguna, James Scoggins, Nagi Mansour, Marc Massot, et al.. Consistent transport properties in multicomponent two-temperature magnetized plasmas: Application to the Sun chromosphere. Astronomy and Astrophysics - A&A, EDP Sciences, 2020, 635, pp.A87. ⟨10.1051/0004-6361/201834686⟩. ⟨hal-01898695⟩
  • Alejandro Alvarez-Laguna, Thierry Magin, Marc Massot, Anne Bourdon, Pascal Chabert. Plasma-sheath transition in multi-fluid models with inertial terms under low pressure conditions: Comparison with the classical and kinetic theory. Plasma Sources Science and Technology, IOP Publishing, 2020, ⟨10.1088/1361-6595/ab6242⟩. ⟨hal-02551832⟩

Conference papers2 documents

  • Alejandro Alvarez-Laguna, T. Magin, Pascal Chabert, M. Massot, Anne Bourdon. Asymptotic-preserving finite volume scheme for the multi-fluid equations towards electric propulsion applications. 71st Annual Gaseous Electronics Conference, Nov 2018, Portland, Oregon, United States. ⟨hal-02342232⟩
  • Valentin Joncquieres, François Pechereau, Alejandro Alvarez-Laguna, Anne Bourdon, Olivier Vermorel, et al.. A 10-moment fluid numerical solver of plasma with sheaths in a Hall Effect Thruster. 54th AIAA/SAE/ASEE Joint Propulsion Conference, 2018, Jul 2018, CINCINNATI, United States. ⟨10.2514/6.2018-4905⟩. ⟨hal-02333475⟩