A Large Eddy Simulation Study of Flow and Mixing Characteristics in Supersonic Combustor

摘要：

　　In this study,wedge type fuel injectors are considered for analysis with a supersonic combustor.This air-fuel mixing phenomenon influences combustion characteristics,and affects the performance of a scramjet engine.A Large-Eddy simulation accompanied with the dynamic Smagorinsky model is used to predict the outcome of a complicated small scale Eddy motion accurately.Pressure distribution at the wall affected by shockwaves and expansion waves are compared with experimental results.Also,the flow structure including shockwaves and behavior of vortexes are well observed.An investigation with the LES shows detail macroscopic and microscopic motion in the supersonic combustor.

关键词： LES (Large Eddy Simulation) Dynamic smagorinsky model Supersonic combustor Wedge type injector

作者: Kyoo-hwan Moon Ji-seok Hong Hong-gye Sung

作者单位: School of Aerospace and Mechanical Engineering,Korea Aerospace University,Goyang Gyeonggi,412-791,Korea

会议类型: 国际会议

会议名称: 2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)

会议地点: 上海

会议语种:英文

页码: 1-6

在线出版日期: 2014-09-24（万方平台首次上网日期，不代表论文的发表时间）