Application of a Nonadiabatic Flamelet/Progress-Variable Approach to Large-Eddy Simulation of H2/O2 Combustion Under a Pressurized Condition
| Autor: | Takayuki Nishiie, Adachi Masaki, Akihiro Kishimoto, Ryoichi Kurose, Akira Ogawara, Kenichiro Takenaka, Hideki Moriai |
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| Rok vydání: | 2017 |
| Předmět: |
Thermal science
020209 energy Mechanical Engineering Heat losses Thermodynamics 02 engineering and technology Mechanics Condensed Matter Physics Combustion 01 natural sciences 010305 fluids & plasmas Variable (computer science) Heat flux Mechanics of Materials 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Environmental science General Materials Science Combustion chamber Large eddy simulation |
| Zdroj: | Journal of Heat Transfer. 139 |
| ISSN: | 1528-8943 0022-1481 |
| DOI: | 10.1115/1.4037099 |
| Popis: | A new nonadiabatic procedure of the flamelet/progress-variable approach (NA-FPV approach) is proposed, and the validity is assessed by performing a large eddy simulation (LES) employing the NA-FPV approach for an H2/O2 combustion field in a single element coaxial combustor under a pressurized condition. The results show that the LES employing the NA-FPV approach can successfully predict the heat flux and capture the effects of heat loss through the cooled walls on the combustion characteristics. This procedure is quite useful especially for the numerical simulations of combustion fields with high temperatures, where there remain reactive radicals (e.g., OH, CH) with high concentrations, such as pressurized combustion, supercritical combustion, and oxygen combustion. |
| Databáze: | OpenAIRE |
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