Application of a Nonadiabatic Flamelet/Progress-Variable Approach to Large-Eddy Simulation of H2/O2 Combustion Under a Pressurized Condition
Application of a Nonadiabatic Flamelet/Progress-Variable Approach to Large-Eddy Simulation of H2/O2 Combustion Under a Pressurized Condition
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非绝热小火焰/进度变量方法在加压条件下 H2/O2 燃烧大涡模拟中的应用
DOI：
10.1115/1.4037099
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Kurose Ryoichi
中科院分区：
文献类型：
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作者：
Kishimoto Akihiro;Moriai Hideki;Takenaka Kenichiro;Nishiie Takayuki;Adachi Masaki;Ogawara Akira;Kurose Ryoichi
提出了一种新的非绝热火焰面/过程变量方法（NA-FPV方法），并采用该方法对增压条件下单元件同轴燃烧室的H2/O2燃烧场进行了大涡模拟（LES），验证了该方法的有效性。结果表明，采用NA-FPV方法的LES可以成功地预测热通量和捕获的热损失通过冷却壁的燃烧特性的影响。这一过程对于高温燃烧场的数值模拟是非常有用的，在高温燃烧场中仍然存在反应性自由基（例如，OH、CH）的高浓度燃烧，如加压燃烧、超临界燃烧和氧气燃烧。
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/O2combustion 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.