液体煤油超声速燃烧数值分析的湍流模型  

The turbulence models for numerical analysis of liquid kerosene supersonic combustion

作　　者：刘欧子[1] 蔡元虎[2] 胡欲立[2] 刘敬华[3] 凌文辉[3] 

机构地区：[1]浙江大学,浙江杭州310027 [2]西北工业大学,陕西西安710072 [3]北京动力机械研究所,北京100074

出　　处：《空气动力学学报》2007年第3期362-367,共6页Acta Aerodynamica Sinica

基　　金：国家自然科学基金资助项目(50086002)

摘　　要：利用计算流体力学软件对煤油在所设计的双模态燃烧室内的喷雾燃烧进行了数值模拟。采用k-ε三种形式、k-ω两种形式和雷诺应力湍流模型,计算了在飞行马赫数为5,煤油与空气的当量比为0.551时的情况。通过将数值模拟结果与实验数据进行对比,证明这些湍流模型都可用于煤油超声速燃烧的数值计算。并且,k-εRNG模型和k-ωSST模型的计算结果与实验数据最为接近,可以认为这两个模型在模拟煤油超声速燃烧流场中是非常有效的;而雷诺应力模型效果较差。With the CFD software numerical analysis of the kerosene spray supersonic combustion was carried out in the dual-mode supersonic combustor. In the case, which flight Math number was 5 and the fuel-air equivalence ratio was 0.551, the numerical results were gotten with the turbulence models such as k-ε, k-ω two equations models and Reynolds stress model. By comparison of the numerical results with experimental data, the turbulence models are adequate for the simulation of the kerosene spray supersonic combustion. The k-ε RNG and k-ω SST turbulence models prove very effective to compute the kerosene supersonic combustion, while the Reynolds stress model is not very well.

关 键 词：双模态 亚声速燃烧 超声速燃烧 湍流模型 数值分析 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]