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Alejandro Alvarez Laguna

31
Documents

Présentation

**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.

Publications

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Study of the breathing mode development in Hall thrusters using hybrid simulations

Federico Petronio , Alejandro Alvarez Laguna , Anne Bourdon , Pascal Chabert
Journal of Applied Physics, 2024, 135 (7), ⟨10.1063/5.0188859⟩
Article dans une revue hal-04476595v1
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Two-dimensional effects on electrostatic instabilities in Hall thrusters. I. Insights from particle-in-cell simulations and two-point power spectral density reconstruction techniques

Federico Petronio , Thomas Charoy , Alejandro Alvarez Laguna , Anne Bourdon , Pascal Chabert
Physics of Plasmas, 2023, 30 (1), pp.012103. ⟨10.1063/5.0119253⟩
Article dans une revue hal-03935095v1
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Discussion on the transport processes in electrons with non-Maxwellian energy distribution function in partially-ionized plasmas

Alejandro Alvarez Laguna , B Esteves , J-L Raimbault , A Bourdon , P Chabert
Plasma Physics and Controlled Fusion, 2023, 65 (5), pp.054002. ⟨10.1088/1361-6587/acc422⟩
Article dans une revue hal-04053504v1
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Two-dimensional effects on electrostatic instabilities in Hall thrusters. II. Comparison of particle-in-cell simulation results with linear theory dispersion relations

Federico Petronio , Thomas Charoy , Alejandro Alvarez Laguna , Anne Bourdon , Pascal Chabert
Physics of Plasmas, 2023, 30 (1), pp.012104. ⟨10.1063/5.0119255⟩
Article dans une revue hal-03946320v1
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CFD for turbulence: from fundamentals to geophysics and astrophysics

Claude Cambon , Alejandro Alvarez Laguna , Ye Zhou
Comptes Rendus. Mécanique, 2022, 350 (S1), pp.1-20. ⟨10.5802/crmeca.135⟩
Article dans une revue hal-03902787v1
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Charged-particles measurements in low-pressure iodine plasmas used for electric propulsion

B Esteves , F Marmuse , C Drag , A Bourdon , A Alvarez Laguna
Plasma Sources Science and Technology, 2022, 31 (8), pp.085007. ⟨10.1088/1361-6595/ac8288⟩
Article dans une revue hal-03812518v1
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A regularized high-order moment model to capture non-Maxwellian electron energy distribution function effects in partially ionized plasmas

Alejandro Alvarez Laguna , B. Esteves , A. Bourdon , P. Chabert
Physics of Plasmas, 2022, 29 (8), pp.083507. ⟨10.1063/5.0095019⟩
Article dans une revue hal-03758363v1
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Three-dimensional unsteady model of arc heater plasma flow

Jeremie B.E. Meurisse , Alejandro Alvarez Laguna , Marco Panesi , Nagi Mansour
Aerospace Science and Technology, 2022, 123, pp.107465. ⟨10.1016/j.ast.2022.107465⟩
Article dans une revue hal-03730481v1
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The interaction between ion transit-time and electron drift instabilities and their effect on anomalous electron transport in Hall thrusters

Thomas Charoy , Trevor Lafleur , Alejandro Alvarez-Laguna , Anne Bourdon , Pascal Chabert
Plasma Sources Science and Technology, 2021, 30 (6), pp.065017. ⟨10.1088/1361-6595/ac02b3⟩
Article dans une revue hal-03232799v1
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2D radial-azimuthal particle-in-cell benchmark for E × B discharges

W Villafana , Federico Petronio , A Denig , M Jimenez , D Eremin
Plasma Sources Science and Technology, 2021, 30 (7), pp.075002. ⟨10.1088/1361-6595/ac0a4a⟩
Article dans une revue hal-03285311v1
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Conditions of appearance and dynamics of the modified two-stream instability in E × B discharges

Federico Petronio , Antoine Tavant , Thomas Charoy , Alejandro Alvarez-Laguna , Anne Bourdon
Physics of Plasmas, 2021, 28 (4), pp.043504. ⟨10.1063/5.0046843⟩
Article dans une revue hal-03220442v1
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An asymptotic preserving well-balanced scheme for the isothermal fluid equations in low-temperature plasma applications

Alejandro Alvarez-Laguna , Teddy Pichard , Thierry Magin , Pascal Chabert , Anne Bourdon
Journal of Computational Physics, 2020, 419, pp.109634. ⟨10.1016/j.jcp.2020.109634⟩
Article dans une revue hal-02116610v1

Collisionless ion modeling in Hall thrusters: Analytical axial velocity distribution function and heat flux closures

S. Boccelli , Thomas Charoy , Alejandro Alvarez-Laguna , P. Chabert , Anne Bourdon
Physics of Plasmas, 2020, 27 (7), pp.073506. ⟨10.1063/5.0006258⟩
Article dans une revue hal-02950586v1
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Plasma-sheath transition in multi-fluid models with inertial terms under low pressure conditions: Comparison with the classical and kinetic theory

Alejandro Alvarez-Laguna , Thierry E. Magin , Marc Massot , Anne Bourdon , Pascal Chabert
Plasma Sources Science and Technology, 2020, ⟨10.1088/1361-6595/ab6242⟩
Article dans une revue hal-02551832v1
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Consistent transport properties in multicomponent two-temperature magnetized plasmas: Application to the Sun chromosphere

Quentin Wargnier , Alejandro Alvarez-Laguna , James B Scoggins , Nagi N Mansour , Marc Massot
Astronomy and Astrophysics - A&A, 2020, 635, pp.A87. ⟨10.1051/0004-6361/201834686⟩
Article dans une revue hal-01898695v1

A GPU-enabled implicit Finite Volume solver for the ideal two-fluid plasma model on unstructured grids

Isaac Alonso Asensio , Alejandro Alvarez Laguna , Mohamed Hassanine Aissa , Stefaan Poedts , Nataly Ozak
Computer Physics Communications, 2019, 239, pp.16-32. ⟨10.1016/j.cpc.2019.01.019⟩
Article dans une revue hal-03730933v1

Fully-implicit finite volume method for the ideal two-fluid plasma model

Alejandro Alvarez Laguna , N. Ozak , A. Lani , H. Deconinck , S. Poedts
Computer Physics Communications, 2018, 231, pp.31-44. ⟨10.1016/j.cpc.2018.05.006⟩
Article dans une revue hal-03730928v1

Effect of Radiation on Chromospheric Magnetic Reconnection: Reactive and Collisional Multi-fluid Simulations

A. Alvarez Laguna , A. Lani , N. Mansour , H. Deconinck , S. Poedts
The Astrophysical Journal, 2017, 842 (2), pp.117. ⟨10.3847/1538-4357/aa7554⟩
Article dans une revue hal-03730699v1

A fully-implicit finite-volume method for multi-fluid reactive and collisional magnetized plasmas on unstructured meshes

A. Alvarez Laguna , A. Lani , H. Deconinck , N.N. Mansour , S. Poedts
Journal of Computational Physics, 2016, 318, pp.252-276. ⟨10.1016/j.jcp.2016.04.058⟩
Article dans une revue hal-03730578v1

The introduction of a virtual radial direction in axial-azimuthal PIC simulations of Hall Thrusters

Federico Petronio , Anne Bourdon , Alejandro Alvarez Laguna , Pascal Chabert
37th International Electric Propulsion Conference, Jun 2023, Boston (MA), France
Communication dans un congrès hal-04465742v1

Analysis of the Breathing Mode dynamics in Hall thrusters using a hybrid simulation

Federico Petronio , Anne Bourdon , Pascal Chabert , Alejandro Alvarez Laguna
76th Annual Gaseous Electronics Conference, American Physical Society, Oct 2023, Ann Arbor, MI, USA, United States
Communication dans un congrès hal-04465476v1

Study of the instabilities in radial-azimuthal and axial-azimuthal 2D PIC simulations of a Hall Thruster

Federico Petronio , Thomas Charoy , Antoine Tavant , Alejandro Alvarez-Laguna , Anne Bourdon
74th Annual Gaseous Electronics Conference, Oct 2021, Virtual, United States
Communication dans un congrès hal-03376991v1

Comparison between kinetic theory and PIC simulations of anomalous electron transport in E x B plasma discharges

Thomas Charoy , Trevor Lafleur , Alejandro Alvarez-Laguna , Anne Bourdon , Pascal Chabert
International Online Plasma Seminar,, Jan 2021, Virtual, France
Communication dans un congrès hal-03322761v1

Investigation of Hall effect thruster instabilities with axial-azimuthal PIC simulation using a collective Thomson scattering approach

Tarek Ben Slimane , Cyrille Honoré , Thomas Charoy , Alejandro Alvarez-Laguna , Anne Bourdon
74th Annual Gaseous Electronics Conference, Oct 2021, Virtual, United States
Communication dans un congrès hal-03376990v1

Experimental Diagnostics for Electrons and Atoms in Low Pressure Iodine Plasmas

Benjamin Esteves , Anne Bourdon , Alejandro Alvarez-Laguna , Pascal Chabert , Cyril Drag
74th Annual Gaseous Electronics Conference, Oct 2021, Virtual, United States
Communication dans un congrès hal-03376980v1

Asymptotic preserving finite-volume method for fluid models in low-temperature partially-magnetized plasma applications involving instabilities

Louis Reboul , Alejandro Alvarez-Laguna , Pascal Chabert , Anne Bourdon , Thierry E. Magin
74th Annual Gaseous Electronics Conference, Oct 2021, Virtual, United States
Communication dans un congrès hal-03376988v1

High-order moment models for low pressure discharges

Alejandro Alvarez-Laguna , Benjamin Esteves , Louis Reboul , Anne Bourdon , Pascal Chabert
74th Annual Gaseous Electronics Conference, Oct 2021, Virtual, United States
Communication dans un congrès hal-03376986v1

Comparison between multifluid and Particle-In-Cell (PIC) simulations of instabilities and boundary layers in low-temperature low pressure magnetized plasmas for electric pro- pulsion applications.

Louis Reboul , Alejandro Alvarez-Laguna , Thierry E. Magin , Pascal Chabert , Anne Bourdon
73rd Annual Gaseous Electronics Virtual Conference, Oct 2020, Virtual, United States
Communication dans un congrès hal-03322743v1
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A 10-moment fluid numerical solver of plasma with sheaths in a Hall Effect Thruster

Valentin Joncquieres , François Pechereau , Alejandro Alvarez-Laguna , Anne Bourdon , Olivier Vermorel
54th AIAA/SAE/ASEE Joint Propulsion Conference, 2018, Jul 2018, CINCINNATI, United States. ⟨10.2514/6.2018-4905⟩
Communication dans un congrès hal-02333475v1

Asymptotic-preserving finite volume scheme for the multi-fluid equations towards electric propulsion applications

Alejandro Alvarez-Laguna , T. Magin , Pascal Chabert , M. Massot , Anne Bourdon
71st Annual Gaseous Electronics Conference, Nov 2018, Portland, Oregon, United States
Communication dans un congrès hal-02342232v1