[1]李 欣,鲁 阳,王崯瞩,等.联焰稳流器对驻涡燃烧室性能的影响分析[J].南京理工大学学报(自然科学版),2014,38(06):787.
 Li Xin,Lu Yang,Wang Yinzhu,et al.Influences of device for flame joint and flow stabilization on performance of trapped vortex combustor[J].Journal of Nanjing University of Science and Technology,2014,38(06):787.
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联焰稳流器对驻涡燃烧室性能的影响分析
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
38卷
期数:
2014年06期
页码:
787
栏目:
出版日期:
2014-12-31

文章信息/Info

Title:
Influences of device for flame joint and flow stabilization on performance of trapped vortex combustor
作者:
李 欣12鲁 阳1王崯瞩1肖周芳1邹建锋1
1.浙江大学 航空航天学院,浙江 杭州 310027; 2.海军驻常州地区航空军事代表室,江苏 常州 213022
Author(s):
Li Xin12Lu Yang1Wang Yinzhu1Xiao Zhoufang1Zou Jianfeng1
1.School of Aeronautics and Astronautics,Zhejiang University,Hangzhou 310027,China; 2.Aeronautical Military Representative Office of Navy in Changzhou,Changzhou 213022,China
关键词:
联焰稳流器 驻涡燃烧室 燃烧性能 高端数字样机系统 冷态流场结构 总压损失 燃烧效率 出口温度
Keywords:
device for flame joint and flow stabilization trapped vortex combustors combustion performance high end digital prototyping system cold flow field structure total pressure loss combustion efficiency outlet temperature
分类号:
V231.2
摘要:
为考察联焰稳流器对驻涡燃烧室的流场和性能的影响,应用高端数字样机系统进行了设计和数值计算。在典型驻涡燃烧室三维模型上添加了联焰稳流器,分析了2个燃烧室模型在不同进口马赫数条件下的冷态流场结构和总压损失。选取进口马赫数为0.2的工况,对2个模型的燃烧流场进行对比,分析了联焰稳流器对燃烧室性能的影响。结果表明:驻涡燃烧室的NOx排放低于普通构型燃烧室; 添加联焰稳流器后,驻涡区能更好地实现与主流区的物质交换,避免因主流速度过快,切断驻涡区与主流区的能量传递; 燃烧效率从97%提高至99%,出口温度分布系数从0.92降为0.49; 2个模型各冷态工况的总压损失也分别增加2%~12%。
Abstract:
In order to analyze the influences of a device for flame joint and flow stabilization on the flow field and performance of a trapped vortex combustor,a high end digital prototyping system is used for design and numerical calculation.A device for flame joint and flow stabilization is added on a typical three-dimensional trapped vortex combustor model.The cold flow field structure and total pressure loss regarding the two models are carried out in conditions of different inlet Mach numbers.Under the working condition of which the Mach number is 0.2,the combustion flow field of the two models are taken for analysis and comparison,and the influences of the device for flame joint and flow stabilization on the chamber performance are analyzed.The simulation results show that:the NOx-emission level of the trapped vortex combustor is lower than those of normal chambers; after added the device for flame joint and flow stabilization,the energy transfer between the trapped vortex area and the mainstream area is increased instead of being cut by the excessive mainstream speed; the combustion efficiency is improved from 97% to 99% and the outlet temperature distribution is decreased from 0.92 to 0.49; the total pressure loss of the cold flow field of the two models is increased by 2%-12%.

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备注/Memo

备注/Memo:
收稿日期:2014-04-21 修回日期:2014-07-21
基金项目:国家自然科学基金(11372276)
作者简介:李欣(1981-),男,工程师,主要研究方向:航空发动机燃烧室设计与仿真,E-mail:li_xin_zju@163.com; 通讯作者:邹建锋(1977-),男,博士,副研究员,主要研究方向:湍流燃烧和大规模计算,E-mail:zoujianfeng@zju.edu.cn。
引文格式:李欣,鲁阳,王崯瞩,等.联焰稳流器对驻涡燃烧室性能的影响分析[J].南京理工大学学报,2014,38(6):787-794.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2014-12-31