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http://dx.doi.org/10.5293/KFMA.2002.5.2.007

A Numerical Study on the Effect of Tip Clearance on the Performance of Turbine Rotor  

Kang, Young-Seok (서울대학교 기계공학과 대학원)
Kang, Shin-Hyoung (서울대학교 기계공학과)
Cho, Hyung-Hee (연세대학교 기계공학과)
Publication Information
The KSFM Journal of Fluid Machinery / v.5, no.2, 2002 , pp. 7-14 More about this Journal
Abstract
The effect of tip clearance is important part for turbomachinery performance. Tip leakage flow due to tip clearance is mixed with passage vortex. Large amount of loss is generated at the mixing region and overall performance of turbomachinery is reduced. Numerical calculation of the 1st stage rotor of GE7FA gas turbine is carried out to investigate tip clearance effect on performance, pitchwise variations of velocity profiles, pressure distributions and loss coefficients. A commercial code, CFX-TascFlow is validated in this study.
Keywords
Turbine Rotor; Tip Clearance; Leakage Flow; Entropy;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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