A diffuse interface Lox/hydrogen transcritical flame model
| Autor: | Vincent Giovangigli, Pierre Gaillard, Lionel Matuszewski |
|---|---|
| Přispěvatelé: | ONERA - The French Aerospace Lab [Palaiseau], ONERA-Université Paris Saclay (COmUE) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Hydrogen
Liquid water General Chemical Engineering Diffusion General Physics and Astronomy Energy Engineering and Power Technology chemistry.chemical_element Thermodynamics 02 engineering and technology 7. Clean energy 01 natural sciences Oxygen 010305 fluids & plasmas Physics::Fluid Dynamics symbols.namesake 020401 chemical engineering 0103 physical sciences supercritical transcritical 0204 chemical engineering diffuse interface [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment General Chemistry Reactive fluid Supercritical fluid Fuel Technology chemistry 13. Climate action Mechanical stability flame Modeling and Simulation symbols van der Waals force |
| Zdroj: | Combustion Theory and Modelling Combustion Theory and Modelling, Taylor & Francis, 2016, ⟨10.1080/13647830.2016.1150518⟩ |
| ISSN: | 1364-7830 1741-3559 |
| DOI: | 10.1080/13647830.2016.1150518⟩ |
| Popis: | International audience; We present a diffuse-interface all-pressure flame model that transitions smoothly between subcritical and supercritical conditions. The model involves a non-equilibrium liquid/gas diffuse interface of van der Waals/Korteweg type embedded into a non-ideal multicomponent reactive fluid. The multicomponent transport fluxes are evaluated in their thermodynamic form in order to avoid singularities at thermodynamic mechanical stability limits. The model also takes into account condensing liquid water in order to avoid thermodynamic chemical instabilities. The resulting equations are used to investigate the interface between cold dense and hot light oxygen as well as the structure of diffusion flames between cold dense oxygen and gaseous-like hydrogen at all pressures, either subcritical or supercritical. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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