实验流体力学2025，Vol.39Issue(1)：87-94,8.DOI:10.11729/syltlx20220088
基于丙酮示踪技术的超燃冲压发动机高温流场可视化研究
Study on the visualization of scramjet high temperature flow field based on acetone tagging technology
摘要
Abstract
In order to further study the influence of different strut's structure on fuel/air mixing effect,when it was in the relatively real working condition of scramjet,parts of test system were improved based on the previous work of the research group.Acetone planar laser induced fluorescence(PLIF)measurement conditions were carried out in hot test environment,and OH-PLIF measurement conditions were carried out in H2 combustion environment.The acetone PLIF fluorescence images and the OH-PLIF fluorescence images which were in the multiple cross sections with various working conditions were obtained.The results showed that the acetone PLIF signals of the four kinds of struts in hot test environment were much weaker than cold test results.However,it was still EL1 strut which had best function on fuel/air mixing effect,and that was consistent with cold test results.Under the condition of H2 ignition combustion,the generated amount and diffusion area of OH reflected that EL1 strut had a better effect on improving the combustion efficiency,and it also reflected from the side that EL1 strut was the best of four kinds of struts.关键词
丙酮示踪/超燃冲压发动机/掺混效果/平面激光诱导荧光/流场结构Key words
acetone tagging/scramjet/mixing effect/planar laser induced fluorescence(PLIF)/flow field structure分类
航空航天引用本文复制引用
王林森,涂晓波,周全,车庆丰,王宇航,陈爽..基于丙酮示踪技术的超燃冲压发动机高温流场可视化研究[J].实验流体力学,2025,39(1):87-94,8.基金项目
国家重点研发计划项目(2020YFA0405700) （2020YFA0405700）
火灾与爆炸安全防护重庆市重点实验室开放基金项目(LQ21KFJJ05) （LQ21KFJJ05）
高超声速冲压发动机技术重点实验室开放基金项目(STS/MY-KFKT-2017-003) （STS/MY-KFKT-2017-003）
航空发动机及燃气轮机重大专项基础研究项目(J2019-XXX-XXX-XXX) （J2019-XXX-XXX-XXX）
