航空学报2025，Vol.46Issue(12)：163-176,14.DOI:10.7527/S1000-6893.2024.31429
支板一体化稳定器液雾分布特性
Spray distribution characteristics of integrated strut flameholder
摘要
Abstract
As traditional structures encounter numerous challenges with continuous improvement of inlet parameters in afterburners,integrated design has become the mainstream trend.However,research on integrated strut flameholder with unconventional parameters is still relatively scarce,and there is a notable scarcity in the variety of trailing edge configurations explored.Therefore,this study presents a design for trailing edge configuration of an integrated strut flameholder used in afterburner.The characteristics of liquid spray distribution under varied conditions are investi-gated,including inlet cosine rotation angles ranging from-25° to 25°,inlet pressures from 0.1 to 0.7 MPa,fuel injec-tion angles from 30° to 150°,nozzle diameters from 0.5 to 1.4 mm,and liquid-to-air momentum ratios from 33 to 124.Additionally,seven other trailing edge configurations are compared to study their potential influences on jet atomiza-tion.The experiments demonstrate that increasing inlet pressure and negative inlet cosine rotation angle(leeward side)result in reduced jet trajectory and penetration depth.Conversely,increasing nozzle diameter and the reverse fuel injection angle between 90° and 110°,along with the positive inlet cosine rotation angle below 25°,lead to in-creased jet penetration depth,higher trajectory,and gradual enlargement of the void area.The different trailing edge configurations named A-I in this article have minimal impact on the outer trajectory of the jet,but significantly affect the inner boundary.The liquid-to-air momentum ratio plays a critical role in jet penetration depth,while the Weber number has a less influence.关键词
加力燃烧室/支板一体化稳定器/喷射角度/来流压力/余旋角Key words
afterburner/integrated strut flameholder/injection angle/inlet pressure/cosine rotation angle分类
航空航天引用本文复制引用
吴杰,刘舆帅,穆勇,雷庆春,范玮..支板一体化稳定器液雾分布特性[J].航空学报,2025,46(12):163-176,14.基金项目
国家科技重大专项(J2019-Ⅲ-0004-0047) （J2019-Ⅲ-0004-0047）
泰山学者工程 National Science and Technology Major Project of China(J2019-Ⅲ-0004-0047) （J2019-Ⅲ-0004-0047）
Taishan Scholars （）
