Large Eddy Simulation of Supercritical Combustion of Liquid Oxygen and Kerosene of a Bi-Swirl Coaxial Injector

2013 ◽  
Author(s):  
Hongfa Huo ◽  
Vigor Yang
Keyword(s):  
Large Eddy Simulation ◽  
Liquid Oxygen ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Coaxial Injector ◽  
Supercritical Combustion

Application of a Nonadiabatic Flamelet/Progress-Variable Approach to Large-Eddy Simulation of H2/O2 Combustion Under a Pressurized Condition

2017 ◽  
Vol 139 (12) ◽  
Author(s):  
Akihiro Kishimoto ◽  
Hideki Moriai ◽  
Kenichiro Takenaka ◽  
Takayuki Nishiie ◽  
Masaki Adachi ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Single Element ◽  
Progress Variable ◽  
Eddy Simulation ◽  
Variable Approach ◽  
Large Eddy ◽  
Pressurized Combustion ◽  
Reactive Radicals ◽  
High Concentrations ◽  
Supercritical Combustion

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.

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