煤油超声速燃烧的数值分析

推进技术 ›› 2004, Vol. 25 ›› Issue (5): 463-468.

煤油超声速燃烧的数值分析

刘欧子,蔡元虎,胡欲立,刘敬华,凌文辉

西北工业大学动力与能源学院;陕西西安710072;西北工业大学动力与能源学院;陕西西安710072;西北工业大学动力与能源学院;陕西西安710072;北京动力机械研究所;北京100074;北京动力机械研究所;北京100074

发布日期:2021-08-15
基金资助:
国家自然科学基金资助项目(50086002);西北工业大学博士论文创新基金资助项目。

Numerical analysis of kerosene supersonic combustion

School of Power and Energy,Northwest Polytechnical Univ.,Xi’an 710072,China;School of Power and Energy,Northwest Polytechnical Univ.,Xi’an 710072,China;School of Power and Energy,Northwest Polytechnical Univ.,Xi’an 710072,China;Beijing Power Generating Machinery Inst.,Beijing 100074,China;Beijing Power Generating Machinery Inst.,Beijing 100074,China

Published:2021-08-15

摘要/Abstract

摘要： 利用计算流体力学软件对煤油在所设计的双模态超声速燃烧室内的超声速喷雾燃烧进行了数值模拟。采用离散液滴模型、概率密度函数紊流扩散燃烧模型和紊流k ω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。数值结果得到的壁面静压分布与实验数据基本一致;计算所得到的总压损失系数是0 696,非常接近实验测量值0 707,但计算得到的燃烧室燃烧效率远比实验值高。

关键词: 超音速冲压喷气发动机;亚音速燃烧;超音速燃烧;煤油;数值分析

Abstract: Numerical analysis of the kerosene spray supersonic combustion was carried out in the dual-mode supersonic combustor with the CFD software.In the case of Mach number 5 and fuel-air equivalence ratio 0.551, the numerical results were obtained with the chemistry model of probability density function,k-ω turbulence model and discrete droplet model.The wall static pressure agrees well between experiments and numerical results.

Key words: Supersonic combustion ramjet engine;Subsonic combustion;Supersonic combustion;Kerosene;numerical analysis

刘欧子,蔡元虎,胡欲立,刘敬华,凌文辉. 煤油超声速燃烧的数值分析[J]. 推进技术, 2004, 25(5): 463-468.