J0501-1-2 タービン回転試験機による航空エンジン低圧タービンの高効率化に関する研究([J0501-1]流体機械の研究開発におけるEFD/CFD(1))

概要

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This paper presents an experimental study of the unsteady flow mechanisms in a single axial flow turbine stage which is simulated the LP turbine airfoils. The target of this study is to verify the influence of the purge flow from the wheelspace cavity on the flow field in the rotor passage, which leads to changes of the secondary flow behavior in the rotor hub region. To observe the unsteady flow pattern at rotor downstream, detailed 3-D unsteady measurements using a slant-type hot wire probe is performed. The result of the unsteady measurement is observed the secondary flow and the leakage flow in the tip region without the purge flow as well as the steady flow measurement with 5-hole probe.
一般社団法人日本機械学会の論文
2010-09-04