1741 タービン段空力性能に及ぼす動静翼干渉効果に関する研究 : 動静翼間隔の影響(S33-4 タービン・その他,S33 流体機械の諸問題)

概要

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Measurements and Unsteady RANS simulations are performed to clarify unsteady aerodynamic interaction upon turbine stage performance, with emphasis on the effect of rotor-stator axial gap. The Blade-count ratio used in the simulation is almost the same as that of the real turbine concerned. The flow fields are measured using five-hole pitot probe downstream of the blade row for three axial spacings between rotor and stator, and we have compared experimental time-averaged pneumatic pressure data with the corresponding numerical results. Detailed comparisons are then made to elucidate the effect of the axial spacing especially on the stage performance from a time-averaged and unsteady point of view.
社団法人日本機械学会の論文
2007-09-07