文章编号：1000-8055（2023）04-0830-10doi：10.13224/j.cnki.jasp.20210216燃油喷雾对某小发环形回流燃烧室燃烧特性影响杨宇东，刘爱虢，王鑫慈，惠蕾，陈雷（沈阳航空航天大学航空发动机学院辽宁省航空推进系统先进测试技术重点实验室，沈阳110136）摘要：为研究燃油喷雾特性对某小发环形回流燃烧室主燃区燃烧特性的影响，采用数值模拟的方法，对环涡形燃烧室内燃油喷嘴伸入火焰筒的深度和喷雾偏转角度对燃烧室内的三维两相喷雾、燃烧特性进行了研究。结果表明：喷嘴位置和角度的变化，会导致燃油雾化性能的变化，从而引起燃烧特性的变化；随着喷嘴伸入火焰筒的深度变短，会导致高温区变窄且靠近火焰筒外壁，深度变长则会导致主燃区高温区减小且燃烧不充分；喷雾偏转角度顺时针旋转可使燃油在主燃区燃烧得更加充分。关键词：小型航空发动机；燃油喷雾方向；环形回流燃烧室；两相喷雾燃烧；燃烧特性中图分类号：V231.2文献标志码：AEffectoffuelsprayoncombustioncharacteristicsofasmallengineannularreverseflowcombustorYANGYudong，LIUAiguo，WANGXinci，XILei，CHENLei（LiaoningKeyLaboratoryofAdvancedTestTechnologyforAeronauticalPropulsionSystem，SchoolofAero-Engine，ShenyangAerospaceUniversity，Shenyang110136，China）Abstract:Inordertostudytheeffectoffuelsprayonthecombustioncharacteristicsofprimarycombustionzoneofasmallengineannularreverseflowcombustor,numericalsimulationmethodwasusedtostudythethree-dimensionaltwo-phasesprayandcombustioncharacteristicsoftheannularreverseflowcombustorbytheinsertiondepthofthenozzleintotheflametubeandspraydeflectionangleinthecombustor.Theresultsshowedthat:thechangeofnozzlepositionandanglecausedthechangeoffuelatomizationperformance,whichcausedthechangeofcombustioncharacteristics;asthedepthofnozzleextendingintotheflametubebecameshorter,itcouldmakethehightemperaturezonenarrowandclosetotheouterwalloftheflametube.Thelongerdepthcouldleadtoreductionofthehightemperaturezoneofprimarycombustionzoneandinsufficientcombustion;theclockwiserotationofthespraydeflectionanglecanmakethefuelburningmorefullyintheprimarycombustionzone.Keywords:smallaeroengine；fuelspraydirection；annularreverseflowcombustor；two-phasespraycombus...
