Reduced-order kinetic plasma models using principal component analysis: Model formulation and manifold sensitivity
| العنوان: | Reduced-order kinetic plasma models using principal component analysis: Model formulation and manifold sensitivity |
|---|---|
| المؤلفون: | Axel Coussement, Aurélie Bellemans, Thierry Magin, Alessandro Parente |
| المساهمون: | Applied Mechanics, Combustion and Robust optimization, IR Academic Unit |
| المصدر: | Physical Review Fluids, 2 (7 |
| بيانات النشر: | American Physical Society (APS), 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Materials science, Mécanique des fluides, Computational Mechanics, chemistry.chemical_element, Combustion, Kinetic energy, 01 natural sciences, 010305 fluids & plasmas, Reduced order, law.invention, Physics::Plasma Physics, law, 0103 physical sciences, Sensitivity (control systems), Physics::Chemical Physics, 010302 applied physics, Fluid Flow and Transfer Processes, Argon, Physique des plasmas, Plasma, Mechanics, chemistry, Modeling and Simulation, Physics::Space Physics, Principal component analysis, Manifold (fluid mechanics) |
| الوصف: | Plasma flows involve hundreds of species and thousands of reactions at different time scales, resulting in a very large set of governing equations to solve. Simulating large reacting systems in nonequilibrium plasma mixtures remains a challenge with the currently available computational resources. Principal component analysis (PCA) offers a general and rather simple and automated method to reduce large kinetic mechanisms by principal variable selection. This work shows how to adapt and apply the PCA-scores technique, which has its origin in the combustion field, to a collisional-radiative model. We have successfully applied this technique to argon plasmas, reducing the set of governing equations by more than 90%, leading to an important speed-up of the calculation and a reduction of computational cost. SCOPUS: ar.j info:eu-repo/semantics/published |
| وصف الملف: | 1 full-text file(s): application/pdf |
| تدمد: | 2469-990X |
| DOI: | 10.1103/physrevfluids.2.073201 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74e0b55bb971234db8782add4a73adc3 https://doi.org/10.1103/physrevfluids.2.073201 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....74e0b55bb971234db8782add4a73adc3 |
| قاعدة البيانات: | OpenAIRE |
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