A TRANSONIC MIXED FLOW COMPRESSOR FOR AN EXTREME DUTY

被引:0
|
作者
Hazby, Hamid [1 ]
Casey, Michael [1 ,2 ]
Numakura, Ryusuke [3 ]
Tamaki, Hideaki [4 ]
机构
[1] PCA Engn Ltd, Lincoln, England
[2] Univ Stuttgart, Inst Thermal Turbomachinery ITSM, Stuttgart, Germany
[3] IHI Corp, Turbo Machinery & Engine Technol Dept, Yokohama, Kanagawa, Japan
[4] IHI Corp, Corp Res & Dev, Yokohama, Kanagawa, Japan
来源
PROCEEDINGS OF THE ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2014, VOL 2D | 2014年
关键词
PERFORMANCE; DESIGN;
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper describes the design of a transonic mixed flow compressor stage for an extreme duty, with an extremely high flow coefficient (phi) of 0.25 and a high isentropic pressure rise coefficient (psi) of 0.56. The impeller design makes use of modern aerodynamic practice from radial and transonic axial compressors, whereby the aerodynamic blade shape involved arbitrary surfaces on several spanwise sections. Some aspects of the aerodynamic optimization of the design were limited by mechanical considerations, but nevertheless the test data obtained on a prototype stage demonstrates that acceptable performance levels can be achieved at these extreme design conditions, although map width enhancement devices were needed to obtain an acceptable operating range. The test data is compared with CFD predictions to demonstrate the validity of the design methods used.
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页数:12
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