航空发动机
航空髮動機
항공발동궤
AERO ENGINE
2011年
4期
48-50,4
,共4页
吴迪%金捷%季鹤鸣%徐胜金
吳迪%金捷%季鶴鳴%徐勝金
오적%금첩%계학명%서성금
支板%凹腔%频率%加力燃烧室%航空发动机%试验
支闆%凹腔%頻率%加力燃燒室%航空髮動機%試驗
지판%요강%빈솔%가력연소실%항공발동궤%시험
strut%cavity%frequency%afterburner%aeroengine%test
为研究不同结构尺寸的凹腔对支板尾缘涡脱落频率特性的影响，设计了用于一体化加力燃烧室的带凹腔支板部件，并对其进行了风洞冷态试验。对所测得的速度数据进行频谱分析，并与标准支板的相关数据进行对比。结果表明：开凹腔设计改变了涡脱落频率变化趋势，而不同结构尺寸的凹腔对尾迹区涡脱落频率的影响相近，
為研究不同結構呎吋的凹腔對支闆尾緣渦脫落頻率特性的影響，設計瞭用于一體化加力燃燒室的帶凹腔支闆部件，併對其進行瞭風洞冷態試驗。對所測得的速度數據進行頻譜分析，併與標準支闆的相關數據進行對比。結果錶明：開凹腔設計改變瞭渦脫落頻率變化趨勢，而不同結構呎吋的凹腔對尾跡區渦脫落頻率的影響相近，
위연구불동결구척촌적요강대지판미연와탈락빈솔특성적영향，설계료용우일체화가력연소실적대요강지판부건，병대기진행료풍동랭태시험。대소측득적속도수거진행빈보분석，병여표준지판적상관수거진행대비。결과표명：개요강설계개변료와탈락빈솔변화추세，이불동결구척촌적요강대미적구와탈락빈솔적영향상근，
In order to study the effect of different cavities on the vortex shedding frequency at the railing edge of a strut, a series of cavity-based struts used for the integrated afterburner were designed. The wind-tunnel cold tests were carried out for those struts. The spectrum analysis of the speed data obtained from the tests were completed, and compared with the data about the standard struts. The results show that the variation trend of the vortex shedding frequency are altered by various cavities, but the effects of variuus cavities on the its trailing edge vortex shedding frequency are similar.
