紀要論文

遷音速軸流タービン翼列の二次元流れ場の数値解析 : 翼負荷分布と出口マッハ数の影響

NUMERICAL ANALYSIS OF TWO-DIMENSIONAL FLOW FIELDS IN TRANSONIC AXIAL TURBINE CASCADE : EFFECTS OF BLADE LOADING DISTRIBUTION AND EXIT MACH NUMBER

jpn

24368083

https://doi.org/10.15002/00026310

法政大学大学院理工学研究科

法政大学大学院紀要. 理工学研究科編

64

1

6

2023-03-24

Version of Record

To investigate the effects of blade loading distribution and exit Mach number on the profile loss in the transonic axial turbine cascade, numerical analyses were performed for the two-dimensional flow fields in three types of axial turbine cascades, which were different in axial-wise blade loading distribution, termed as the mid-loaded, the aft-loaded, and the front-loaded airfoil, respectively. The computed results showed the similar characteristic phenomena caused by the difference of the blade loading distribution to those in the experimental results. The mid-loaded one generated the impingement on the suction surface of the trailing-edge shock from the adjacent blade at lower exit Mach number than the others, and consequently increased the profile loss. On the other hand, the aft-loaded one exhibited the inverse phenomena to those of the mid-loaded one.

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