High-Fidelity Simulations of Plasma-Assisted Oxidation of Hydrocarbon Fuels Using Nanosecond Pulsed Discharges

Nicholas Deak, Alfredo Duarte, Lucas Esclapez, Marc Day, Fabrizio Bisetti

Research output: Contribution to conferencePaper

Abstract

Next, a robust and efficient framework for simulating NSPD in multiple dimensions is developed. The reactive Navier-Stokes equations are extended to include a drift-diffusion plasma-fluid model with a local field approximation (LFA) in a finite-volume solver, which uses an adaptive mesh refinement (AMR) strategy to address the wide separation of length scales in the problem. A two-way coupling strategy is used whereby the plasma-fluid model and reactive Navier-Stokes equations are integrated simultaneously. The oxidation of ethylene/air mixtures mediated by NSPD is simulated in a pin-to-pin configuration. All phases of the plasma discharge are simulated explicitly (including streamer ignition, propagation, and connection, as well as the subsequent spark phase), along with the evolution of the plasma during the inter-pulse period. Temporally and spatially-resolved results are presented, with an emphasis on the analysis of heating and energy deposition, as well as of the evolution of the concentration of active particles generated during the NSPD and their influence on ignition.
Original languageAmerican English
Number of pages20
DOIs
StatePublished - 2023
Event2023 American Institute of Aeronautics and Astronautics (AIAA) SciTech Forum - National Harbor, Maryland
Duration: 23 Jan 202327 Jan 2023

Conference

Conference2023 American Institute of Aeronautics and Astronautics (AIAA) SciTech Forum
CityNational Harbor, Maryland
Period23/01/2327/01/23

NREL Publication Number

  • NREL/CP-2C00-85233

Keywords

  • adaptive mesh refinement
  • nanosecond pulsed discharges
  • plasma-assisted combustion

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