带中心楔体的三通道驻涡燃烧室数值优化  

Numerical Optimization of a Three-duct Trapped Vortex Combustor with Middle Wedge

作　　者：姚婷 刘景源[1] YAO Ting;LIU Jingyuan(School of Aircraft Engineering,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]南昌航空大学飞行器工程学院,南昌330063

出　　处：《弹箭与制导学报》2020年第2期121-125,129,共6页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金(11102079,11562012)资助。

摘　　要：提出了一种带中间楔体的三通道进气驻涡燃烧室,将正交试验设计与方差分析相结合,取5个几何参数为研究对象,对燃烧室性能进行研究。结果表明,对燃烧效率影响由大到小的因素分别为θ、H2/H1、L2/H1、D/S、L1/H1,其中θ占71.76%,H 2/H 1占20.13%,其他因素影响较小;对总压损失系数影响由大到小的因素依次为H2/H1、θ、L2/H1、L1/H1、D/S,其中H 2/H 1占53.58%,θ占31.56%,而其他因素影响较小。当θ=75°、D/S=3.5%、L1/H1=1、L2/H1=2.8、H2/H1=0.9时,燃烧效率达到最大值98.75%,此时的总压损失系数为1.58%。A three-duct Trapped Vortex Combustor(TVC)with middle wedge was proposed,based on orthogonal experimental design and variance analysis method,5 geometric parameters was adopted to analyze the performance of the TVC by numerical simulation and theoretical analysis.The results show the factors affecting combustion efficiency areθ,H 2/H 1,L 2/H 1,D/S and L 1/H 1 respectively,which H 2/H 1 holds 53.58%of the total factors andθtakes over 31.56%.As to total pressure loss coefficient the factors of H 2/H 1,θ,L 2/H 1,L 1/H 1 and D/S follows.The maximum combustion efficiency is 98.75%,whenθ=75°,D/S=3.5%,L 1/H 1=1,L 2/H 1=2.8,H 2/H 1=0.9 and total pressure loss coefficient1.58%.

关 键 词：驻涡燃烧室 正交试验设计 方差分析 燃烧效率 总压损失系数 数值模拟 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程] V235.1