南京理工大学学报（自然科学版）Issue(6)：787-794,8.
联焰稳流器对驻涡燃烧室性能的影响分析
Influences of device for flame joint and flow stabilization on performance of trapped vortex combustor
摘要
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%.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Key words
device for flame joint and flow stabilization/trapped vortex combustors/combustion per-formance/high end digital prototyping system/cold flow field structure/total pressure loss/combustion efficiency/outlet temperature分类
航空航天引用本文复制引用
李欣,鲁阳,王崯瞩,肖周芳,邹建锋..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,(6):787-794,8.基金项目
国家自然科学基金(11372276) （11372276）
