A Reduced-Order Simulation Methodology for Nanosecond-Pulsed Plasmas in a Backward-Facing Step Supersonic Combustor Configuration
This work presents a simplified methodology for coupling the physics of a nanosecond-pulsed discharge to the process of supersonic combustion within a backward-facing step combustor. The phenomena of plasma and supersonic combustion are simulated separately and then coupled. Based on results reporte...
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| Format: | Article |
| Language: | English |
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Shahid Chamran University of Ahvaz
2023-01-01
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| Series: | Journal of Applied and Computational Mechanics |
| Subjects: | |
| Online Access: | https://jacm.scu.ac.ir/article_17683_92ea6f2f5677a59e46417fd119c2dac7.pdf |
| _version_ | 1811241819266088960 |
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| author | Luis Alvarez Albio Gutierrez |
| author_facet | Luis Alvarez Albio Gutierrez |
| author_sort | Luis Alvarez |
| collection | DOAJ |
| description | This work presents a simplified methodology for coupling the physics of a nanosecond-pulsed discharge to the process of supersonic combustion within a backward-facing step combustor. The phenomena of plasma and supersonic combustion are simulated separately and then coupled. Based on results reported in the literature, a zero-dimensional plasma model is built, considering only the kinetic effects of the nanosecond-pulsed discharge. A set of Favre-averaged compressible Navier-Stokes equations, as well as finite rate chemistry, is used in the combustion model and solved with a control-volume based technique. The plasma-supersonic combustion coupling process only considers the discharge as a source of O and H radical species. The calculated densities of the radicals generated during each pulse from the plasma model are periodically seeded inside the domain of the combustor. The proposed methodology is used to perform a novel simulation that involved the application of plasma to a well-known supersonic combustion experiment. The temperature and species concentration contours show that the proposed methodology captures the main effects of the nanosecond-pulsed discharge on supersonic combustion. The ignition delay time is reduced when the plasma discharge was applied. In addition, the simulations show that the plasma causes a supersonic low-enthalpy mixture to ignite, confirming the capability of the methodology. |
| first_indexed | 2024-04-12T13:42:50Z |
| format | Article |
| id | doaj.art-485e83f192ea425b956beb816ef3caf2 |
| institution | Directory Open Access Journal |
| issn | 2383-4536 |
| language | English |
| last_indexed | 2024-04-12T13:42:50Z |
| publishDate | 2023-01-01 |
| publisher | Shahid Chamran University of Ahvaz |
| record_format | Article |
| series | Journal of Applied and Computational Mechanics |
| spelling | doaj.art-485e83f192ea425b956beb816ef3caf22022-12-22T03:30:48ZengShahid Chamran University of AhvazJournal of Applied and Computational Mechanics2383-45362023-01-019118119410.22055/jacm.2022.40704.364417683A Reduced-Order Simulation Methodology for Nanosecond-Pulsed Plasmas in a Backward-Facing Step Supersonic Combustor ConfigurationLuis Alvarez0Albio Gutierrez1Aerospace Exploration and Development Research Group - IDEXA, Universidad del Valle, Cl 13 # 100-00, E33-1009, 760032, Cali, ColombiaResearch Group in Fatigue and Surfaces, Universidad del Valle, Cl 13 # 100-00, E49-2011, 760032, Cali, ColombiaThis work presents a simplified methodology for coupling the physics of a nanosecond-pulsed discharge to the process of supersonic combustion within a backward-facing step combustor. The phenomena of plasma and supersonic combustion are simulated separately and then coupled. Based on results reported in the literature, a zero-dimensional plasma model is built, considering only the kinetic effects of the nanosecond-pulsed discharge. A set of Favre-averaged compressible Navier-Stokes equations, as well as finite rate chemistry, is used in the combustion model and solved with a control-volume based technique. The plasma-supersonic combustion coupling process only considers the discharge as a source of O and H radical species. The calculated densities of the radicals generated during each pulse from the plasma model are periodically seeded inside the domain of the combustor. The proposed methodology is used to perform a novel simulation that involved the application of plasma to a well-known supersonic combustion experiment. The temperature and species concentration contours show that the proposed methodology captures the main effects of the nanosecond-pulsed discharge on supersonic combustion. The ignition delay time is reduced when the plasma discharge was applied. In addition, the simulations show that the plasma causes a supersonic low-enthalpy mixture to ignite, confirming the capability of the methodology.https://jacm.scu.ac.ir/article_17683_92ea6f2f5677a59e46417fd119c2dac7.pdfplasma assisted combustionnanosecond pulsed dischargescramjetsupersonic flowcfd |
| spellingShingle | Luis Alvarez Albio Gutierrez A Reduced-Order Simulation Methodology for Nanosecond-Pulsed Plasmas in a Backward-Facing Step Supersonic Combustor Configuration Journal of Applied and Computational Mechanics plasma assisted combustion nanosecond pulsed discharge scramjet supersonic flow cfd |
| title | A Reduced-Order Simulation Methodology for Nanosecond-Pulsed Plasmas in a Backward-Facing Step Supersonic Combustor Configuration |
| title_full | A Reduced-Order Simulation Methodology for Nanosecond-Pulsed Plasmas in a Backward-Facing Step Supersonic Combustor Configuration |
| title_fullStr | A Reduced-Order Simulation Methodology for Nanosecond-Pulsed Plasmas in a Backward-Facing Step Supersonic Combustor Configuration |
| title_full_unstemmed | A Reduced-Order Simulation Methodology for Nanosecond-Pulsed Plasmas in a Backward-Facing Step Supersonic Combustor Configuration |
| title_short | A Reduced-Order Simulation Methodology for Nanosecond-Pulsed Plasmas in a Backward-Facing Step Supersonic Combustor Configuration |
| title_sort | reduced order simulation methodology for nanosecond pulsed plasmas in a backward facing step supersonic combustor configuration |
| topic | plasma assisted combustion nanosecond pulsed discharge scramjet supersonic flow cfd |
| url | https://jacm.scu.ac.ir/article_17683_92ea6f2f5677a59e46417fd119c2dac7.pdf |
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