燃气涡轮试验与研究
燃氣渦輪試驗與研究
연기와륜시험여연구
GAS TURBINE EXPERIMENT AND RESEARCH
2012年
2期
21-23,48
,共4页
轴流压气机%可调静子%CFD%间隙%HPC
軸流壓氣機%可調靜子%CFD%間隙%HPC
축류압기궤%가조정자%CFD%간극%HPC
axial compressor%variable stator%CFD%clearance%HPC
多级轴流压气机多采用可调静子调节压气机中低转速性能。由于转动需要，静子叶片与流道间必然存在径向间隙，使得流场中额外引入端壁间隙流。利用CFD软件，研究了可调静子径向间隙对多级轴流压气机性能的影响。相关三维粘性数值仿真结果表明：高精度的CFD分析中，间隙影响不可忽略；可调静子转轴的优化设计，可有效减小间隙对压气机性能的影响。
多級軸流壓氣機多採用可調靜子調節壓氣機中低轉速性能。由于轉動需要，靜子葉片與流道間必然存在徑嚮間隙，使得流場中額外引入耑壁間隙流。利用CFD軟件，研究瞭可調靜子徑嚮間隙對多級軸流壓氣機性能的影響。相關三維粘性數值倣真結果錶明：高精度的CFD分析中，間隙影響不可忽略；可調靜子轉軸的優化設計，可有效減小間隙對壓氣機性能的影響。
다급축류압기궤다채용가조정자조절압기궤중저전속성능。유우전동수요，정자협편여류도간필연존재경향간극，사득류장중액외인입단벽간극류。이용CFD연건，연구료가조정자경향간극대다급축류압기궤성능적영향。상관삼유점성수치방진결과표명：고정도적CFD분석중，간극영향불가홀략；가조정자전축적우화설계，가유효감소간극대압기궤성능적영향。
Variable stator vanes are used for regulating the characters of muhi-stage axial compressor. It should have additional clearance flows between vane and casing for rotating requirements. The effects of clear- ance between casing and variable stator vane on multi-stage axial compressor performance are investigated by employing the CFD software. The relevant D viscous flow calculations show that the influence of clearance be- tween casing and variable stator vane can＇ t be neglected in precise CFD analysis. And the influence can be weakened by optimum design of stator rotating shafts.
