FEM simulation of laser-induced plasma breakdown experiments for combustion applications

Andrea Alberti, Alessandro Munafò, Amal Sahai, Carlos Pantano, Marco Panesi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this work, a physical model for Laser Induced Breakdown in air for combustion applications is proposed. Inverse Bremsstrahlung, air breakdown chemistry and shock dynamics are taken into account. The air plasma is modeled via the Navier-Stokes equations, where non-equilibrium effects are described by means of a two-temperature model. The flow governing equations are coupled to the radiative transfer equation (i.e., Kinetic Theory of photons) to account for laser-plasma interactions. The two sets of governing equations are solved using the FIN-S framework, where the Navier-Stokes equations are discretized based on an SUPG Finite Element Method. The discretization of the radiative transfer problem is accomplished via a Finite Volume method. Simulations are performed to predict the plasma evolution during breakdown and post-breakdown stages. A comparison between the computed and experimentally determined shock diameter is also reported, showing a good agreement between the two predictions.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624104473
StatePublished - 2017
Event55th AIAA Aerospace Sciences Meeting - Grapevine, United States
Duration: Jan 9 2017Jan 13 2017

Publication series

NameAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting


Other55th AIAA Aerospace Sciences Meeting
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering


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