Phenomenological reduced-order modeling of subcritical combustion in cryogenic rocket engines: an application to the prediction of high-frequency combustion instabilities
| Autor: | Guillaume Storck, Sébastien Ducruix, Luc-Henry Dorey, Marie Théron |
|---|---|
| Přispěvatelé: | DMPE, ONERA, Université Paris Saclay [Palaiseau], ONERA-Université Paris-Saclay, Laboratoire d'Énergétique Moléculaire et Macroscopique, Combustion (EM2C), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre National d’Études Spatiales [Paris] (CNES) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
[PHYS]Physics [physics]
Materials science business.product_category business.industry 02 engineering and technology Combustion 01 natural sciences 7. Clean energy 010305 fluids & plasmas Reduced order Physics::Fluid Dynamics [SPI]Engineering Sciences [physics] 020401 chemical engineering Rocket 0103 physical sciences Sub critical 0204 chemical engineering Aerospace engineering business |
| Zdroj: | AIAA Propulsion and Energy 2020 Forum AIAA Propulsion and Energy 2020 Forum, Aug 2020, Virtual event, United States. pp.AIAA 2020-3830, ⟨10.2514/6.2020-3830⟩ |
| DOI: | 10.2514/6.2020-3830⟩ |
| Popis: | International audience; The set of equations governing reacting two-phase flows in liquid-propellant rocket engines is simplified and linearized around a steady base flow. In the particular case of a liquid/gas coaxial injector, models for the atomization, evaporation and combustion source terms are derived from a simplified physical description of both the oxidizer liquid core and spray. The resulting equations are projected onto a modal basis, leading to a quasi-linear dynamic description of the evolution of the system. In this paper, detailed model reduction focuses on the evaporation of polydisperse sprays and on the propagation of acoustic waves within the gas. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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