高速热气流试验系统燃烧室温度性能数值仿真

Numerical simulation of temperature performance in combustor of high-speed heat-air flow system

中文关键词: 数值模拟  高速热气流  燃烧  温度分布  燃油

英文关键词: Numerical simulation  high-speed heat-airflow  combustion  temperature distribution  fuel

中文摘要:

      给出了燃油在高速热气流试验系统燃烧的分布式数学模型，在GAMBIT软件中建立了系统燃烧室的几何模型，并进行了网格划分。为了了解燃油在燃烧室燃烧的性能以及系统燃烧室的出口温度分布，利用计算流体力学仿真软件Fluent模拟了燃油在燃烧室中的燃烧，分别研究了不同油气比对燃烧室出口温度的影响和不同喷射角度对燃烧室出口温度的影响，仿真结果表明，喷射角度为30度左右时，燃烧室出口温度最均匀。

英文摘要:

      A distributed mathematical model of the fuel combustion in a high-speed heat-airflow trial system is presented, and the geometrical model of the system is established and meshed by using GAMBIT. In order to understand the combustion performance of the fuel and the outlet temperature distribution of the combustor, the combustion of fuel in the combustor is simulated by using computational fluid dynamics software, the influence of different fuel gas ratio and the influence of the spray angle on outlet temperature distribution of combustor are studied,respectively.The present study laid a foundation for gas temperature control of the combustor.