陈闯,沈世成,付雪青,等.主燃孔参数对双级轴向旋流燃烧室流动与燃烧特性的影响[J].内燃机工程,2025,46(3):39-47.
主燃孔参数对双级轴向旋流燃烧室流动与燃烧特性的影响
Effects of Primary Inlet Hole Parameters on the Flow and Combustion Characteristics of a Two-Stage Axial Swirl Combustor
DOI：10.13949/j.cnki.nrjgc.2025.03.005
关键词:轴向旋流燃烧室  流场  燃烧效率  出口温度分布
Key Words:axial swirl combustor  flow field  combustion efficiency  outlettemperature distribution
基金项目:国家自然科学基金项目（52276131）； 装备预研重点试验室基金项目（6142212220406，6142212230401）
作者单位E-mail
陈闯* 天津大学 先进内燃动力全国重点试验室，天津 300072 chuangchen13@aliyun.com 
沈世成 天津大学 先进内燃动力全国重点试验室，天津 300072 2022201149@tju.edu.cn 
付雪青 中国北方发动机研究所 柴油机增压技术重点试验室，天津300400 fuxueqing536@163.com 
安彦召* 天津大学 先进内燃动力全国重点试验室，天津 300072 yanzhao_an@tju.edu.cn 
王禹璋 天津大学 先进内燃动力全国重点试验室，天津 300072 wyz_2023@tju.edu.cn 
裴毅强 天津大学 先进内燃动力全国重点试验室，天津 300072 peiyq@tju.edu.cn 
张岩 中国北方发动机研究所 柴油机增压技术重点试验室，天津300400 tjuzhangyan@163.com 
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摘要:基于双级轴向旋流燃烧室燃用柴油试验工况进行了模拟仿真，讨论了主燃孔参数对旋流燃烧室流场和燃烧特性的影响。结果表明：当主燃孔中心轴线与燃烧室入口距离较大时，燃烧室中心回流区面积增大，而改变主燃孔直径对回流区影响较小；当主燃孔中心轴线与燃烧室入口距离较小时，燃烧效率明显降低，最低值低于90%，主燃孔直径改变对燃烧效率影响较小。在靠近燃烧室出口平面上，出口温度分布系数受主燃孔中心轴线与燃烧室入口距离影响较小，受主燃孔直径影响较大，最小值为0.423。
Abstract:Simulation was carried out based on the experimental condition of two-stage axial swirl combustor fueled with diesel. The influences of primary hole parameters on flow fields and combustion characteristics of swirl combustor were discussed. The results show that primary recirculation zone area is increased when the distance between the central axis of primary holes and combustor inlet is large， while the change in the diameters of primary holes has a relatively minor effect on the recirculation. The combustion efficiency is obviously reduced to below 90%， when the distance between the central axis of primary holes and combustor inlet is short. But it is slightly influenced by the diameters of primary holes. The outlet temperature distribution fraction is significantly affected by the diameter of the primary hole， with a minimum value of 0.423， while the distance between the central axis of the primary hole and the combustor inlet has little effect on the outlet temperature distribution coefficient， especially on the plane near the combustor outlet.
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