燃气涡轮试验与研究
燃氣渦輪試驗與研究
연기와륜시험여연구
GAS TURBINE EXPERIMENT AND RESEARCH
2014年
4期
18-21
,共4页
航空发动机%反力度%叶尖间隙%级性能试验%涡轮效率%数值计算
航空髮動機%反力度%葉尖間隙%級性能試驗%渦輪效率%數值計算
항공발동궤%반력도%협첨간극%급성능시험%와륜효솔%수치계산
aero-engine%reaction%tip clearance%stage performance test%turbine efficiency%numerical calculation
采用中温模拟级性能试验器，试验研究了高反力度涡轮转子叶尖间隙对涡轮级性能的影响，获得了转子叶尖间隙对涡轮级性能的影响规律。通过对试验方案进行数值计算分析，并与试验结果进行对比，验证了数值计算分析方法的合理性。研究结果表明，当涡轮级反力度较高时，随着相对叶尖间隙的减小，其对涡轮性能的影响越来越明显；转子叶尖间隙变化对导向器喉部流通能力也会产生一定影响。
採用中溫模擬級性能試驗器，試驗研究瞭高反力度渦輪轉子葉尖間隙對渦輪級性能的影響，穫得瞭轉子葉尖間隙對渦輪級性能的影響規律。通過對試驗方案進行數值計算分析，併與試驗結果進行對比，驗證瞭數值計算分析方法的閤理性。研究結果錶明，噹渦輪級反力度較高時，隨著相對葉尖間隙的減小，其對渦輪性能的影響越來越明顯；轉子葉尖間隙變化對導嚮器喉部流通能力也會產生一定影響。
채용중온모의급성능시험기，시험연구료고반력도와륜전자협첨간극대와륜급성능적영향，획득료전자협첨간극대와륜급성능적영향규률。통과대시험방안진행수치계산분석，병여시험결과진행대비，험증료수치계산분석방법적합이성。연구결과표명，당와륜급반력도교고시，수착상대협첨간극적감소，기대와륜성능적영향월래월명현；전자협첨간극변화대도향기후부류통능력야회산생일정영향。
The effect of tip clearance on turbine stage efficiency in a high-reaction turbine was investigated by mid-temperature test and numerical simulation, and the effect rule was obtained. The rationality of nu-merical calculation method was demonstrated through comparison between the calculation results and test results. Research results indicate that efficiency influence is more obvious in a high-reaction turbine and mass flow of turbine stator is mutative in different tip clearance.
