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.
Deak, Nicholas E., et al. "High-Fidelity Simulations of Plasma-Assisted Oxidation of Hydrocarbon Fuels Using Nanosecond Pulsed Discharges." , Jan. 2023. https://doi.org/10.2514/6.2023-2385
Deak, Nicholas E., Duarte, Alfredo J., Esclapez, Lucas, et al., "High-Fidelity Simulations of Plasma-Assisted Oxidation of Hydrocarbon Fuels Using Nanosecond Pulsed Discharges," (2023), https://doi.org/10.2514/6.2023-2385
@conference{osti_1972814,
author = {Deak, Nicholas E. and Duarte, Alfredo J. and Esclapez, Lucas and Day, Marc and Bisetti, Fabrizio},
title = {High-Fidelity Simulations of Plasma-Assisted Oxidation of Hydrocarbon Fuels Using Nanosecond Pulsed Discharges},
annote = {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.},
doi = {10.2514/6.2023-2385},
url = {https://www.osti.gov/biblio/1972814},
place = {United States},
organization = {National Renewable Energy Laboratory (NREL), Golden, CO (United States)},
publisher = {Reston, VA: American Institute of Aeronautics and Astronautics (AIAA)},
year = {2023},
month = {01}}
Conference: Presented at the 2023 American Institute of Aeronautics and Astronautics (AIAA) SciTech Forum, 23-27 January 2023, National Harbor, Maryland