SECONDARY LOSS GENERATION IN A LINEAR CASCADE OF HIGH-TURNING TURBINE-BLADES

被引：65

作者：

HARRISON, S

机构：

[1] Whittle Laboratory, Cambridge University, Cambridge

来源：

JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 04期

关键词：

D O I：

10.1115/1.2927702

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Flow through a linear cascade of high-turning, low aspect ratio turbine blades has been measured in great detail at five planes within the cascade and two downstream in order to trace the generation of stagnation pressure loss in the passage. Five-hole probes were used in the main flow, but as it is important to resolve the boundary layers accurately, three-hole and single flattened probes were used near the endwall and blade surfaces, respectively. Endwall shear stresses have been measured using a hot-film probe and an oil-drop viscosity balance technique. Numerical predictions and simple aerodynamic models are used in conjunction with the experimental data to estimate the relative importance of different loss mechanisms, including boundary layer shear stresses and mixing processes © 1990 ASME.

引用

页码：618 / 624

页数：7

共 15 条

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