Fundamental investigations for lowering emissions and improving operability  

作　　者：Xiao Ren Xin Xue Kyle B.Brady Chih-Jen Sung Hukam C.Mongia 

机构地区：[1]Department of Mechanical Engineering,University of Connecticut,Storrs,CT 06269,USA [2]National Research Council,Air Force Research Laboratory,WPAFB,OH 45433,USA [3]CSTI Associates,LLC,Yardley,PA 19067,USA

出　　处：《Propulsion and Power Research》2018年第3期197-204,共8页推进与动力（英文）

摘　　要：This paper first highlights recent developments in lean direct injection(LDI)combustion technology.In view of the needs and opportunities to lower emissions and expand the operability range of LDI,fundamental research has been undertaken to elucidate the effects of air swirler vane angle,air swirler rotation direction,and overall equivalence ratio on the LDI flow field and flame structure/response.Moreover,additional investigation has been conducted to understand the fundamental differences between representative LDI and airblast injectors in order to highlight the importance of the flare feature to LDI venturi geometry.The results of these fundamental studies are discussed to help identify possible areas for optimization to generic LDI designs that may improve individual swirler performance.

关 键 词：Gas turbine combustor Low emissions Lean direct injection Airblast injector Swirl-venturi configuration 

分 类 号：TK1[动力工程及工程热物理—热能工程]