【作者】 王凯；

【导师】 沈锦林；

【作者基本信息】 浙江大学 ， 材料加工与工程， 2004， 硕士

【摘要】 本文综合评述了国内外玻璃熔窑纯氧燃烧方法与火焰空间燃烧过程研究方法的发展，在研究燃油纯氧助燃单元玻璃熔窑燃烧理论的基础上，建立了燃油纯氧助燃单元玻璃熔窑火焰空间中燃烧过程的三维数学模型。模型包括气相流动与传热模型和雾化油滴燃烧的轨道模型。前者以流体力学中的连续性方程，动量方程，湍流模型方程和能量方程为基础，采用SIMPLE方法和有限元方法求解；后者用单元内颗粒源法来处理，将颗粒对气相的影响作为源项加给气相。程序采用适合科学计算的MS—FORTRAN语言。 为便于对计算结果进行观察，本文使用StanfordGraph与Tecplot工具软件将数值模拟得到的计算结果用图像直观的表述出来，从而更为直观地表示温度场分布和气流的运动情况，实现计算结果的可视化。 课题结合实例研究了年产9000吨“E”玻璃燃油纯氧单元玻璃熔窑火焰空间的温度场速度场的分布。计算结果表明，该三维数学模型能够比较全面地反映火焰空间温度场速度场分布的规律；程序收敛性良好，而且具有改变参数容易，不受环境波动影响的优点，具有一定的实用意义。采用图像模拟能更直观地表示数值计算的结果，对纯氧燃烧的研究和应用，具有一定的参考价值。更多还原

【Abstract】 This thesis reviewed systematically the development of numerical simulation for oxy - fuel combustion and turbulent combustion in combustion space of glass melting furnaces, and established three-dimensional mathematical model which is very practical in oil fired oxy -fuel unit glass furnaces on the base of theory of glass melting furnaces and industrial application. The model consisted of gas turbulent flows and heat transfer sub-model and spray combustion sub-model. The former includes continuity equation, momentum equation, turbulence equation and energy equation and were solved by SIMPLE and FEM scheme, the later makes use of the PSIC method.The flow field and temperature distribution of combustion space in oil fired oxy-fuel glass furnaces(9 OOOt/y) were studied in this paper. It was concluded that the oxy-fuel combustion temperature distribution of combustion space could be described well by three-dimensional model which would apply widely.更多还原