系统仿真学报 ›› 2015, Vol. 27 ›› Issue (7): 1474-1479.

• 仿真建模与仿真算法及数值仿真 • 上一篇    下一篇

燃油喷射源位置影响湍流燃烧过程的数值模拟

孙辉1, 蔡光程1, 姜麟1, 王仕博2   

  1. 1.昆明理工大学理学院,昆明 650500;
    2.昆明理工大学冶金与能源工程学院,昆明 650500
  • 收稿日期:2014-06-26 修回日期:2014-09-04 出版日期:2015-07-08 发布日期:2020-07-31
  • 作者简介:孙辉(1981-),女,山东阳谷人,硕士生,讲师,研究方为计算数学,冶金过程数值模拟;蔡光程(1965-),男,云南文山人,博士,教授,研究方向为数值图像处理、科学计算。
  • 基金资助:
    昆明理工大学人才基金(2008-72); 云南省自然科学基金(2011FZ025)

Numerical Simulation about Fuel Injection Source Location Impacting on Turbulent Combustion Process

Sun Hui1, Cai Guangcheng1, Jiang Lin1, Wang Shibo2   

  1. 1. Faculty of Science, Kunming University of Science and Technology, Kunming 650500 China;
    2. Faculty of Materials and Metallurgy Engineering, Kunming University of Science and Technology, Kunming 650500, China
  • Received:2014-06-26 Revised:2014-09-04 Online:2015-07-08 Published:2020-07-31

摘要: 燃油喷射源位置对燃烧过程有着很重要的影响,它决定了炉膛中火焰的位置。采用数值模拟的方法,建立三维燃烧器模型,在不同工况下考察了燃油喷射源位置对炉膛内温度场、污染物浓度场、燃烧过程中炉膛内的流场分布的影响,并对计算结果进行了比较分析。经分析表明:燃油喷射源位置由1.1~1.5 m变化的过程中,炉膛内的平均温度不断升高,污染物NO的浓度先升高后降低。这将有助于探索燃油喷射源位置对燃烧过程的影响,对炉内的传热和优化有进一步认识,对改进燃烧模型有重要的意义。

关键词: 数值模拟, 燃烧, 燃油喷射源位置, 温度场, 污染物浓度场

Abstract: Fuel injection source location has very important influence on combustion process. It determines the location of the furnace flame. The three dimensional model of the furnace was established by the numerical simulation method. Under different conditions, the fuel injection source location on the temperature field within the furnace, the pollutant concentration field, and the flow field distribution inside the furnace combustion process were investigated. The results were compared and analyzed. After analysis, the results show that the fuel injection source location from 1.1 ~ 1.5 meter process of change, the average temperature within the furnace continue to rise, the concentration of pollutants Nitric oxide increased first and reduced after. This will help to explore the fuel injection source location effecting on combustion process, which makes a further understanding on optimization and heat transfer inside the furnace, and this has significance for improved combustion model.

Key words: numerical simulation, combustion, fuel injection source location, temperature field, pollutant concentration field

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