Effect of Vane Opening on Aerodynamic Performance of the Ram-rotor Test System

In order to research the influence of adjustable vane on the aerodynamic performance of the ram-rotor test system, FLUENT soft-ware has been adopted to simulate the flow passage of the ram-rotor test system numerically. The vane opening is controlled by changing the stagger angle of the vane blades....

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Bibliographic Details
Published in:Journal of thermal science 2016-06, Vol.25 (3), p.207-215
Main Authors: Han, Ji-ang, Guan, Jian, Zhong, Jingjun, Yuan, Chenguang
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Engineering Fluid Dynamics
Engineering Thermodynamics
Heat and Mass Transfer
Physics
Physics and Astronomy
冲压
可调叶片
数值模拟
气动性能
流动均匀性
空气动力
试验系统
转子
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Summary:In order to research the influence of adjustable vane on the aerodynamic performance of the ram-rotor test system, FLUENT soft-ware has been adopted to simulate the flow passage of the ram-rotor test system numerically. The vane opening is controlled by changing the stagger angle of the vane blades. Results show that flow uniformity of vane outlet is influenced by the vane openings, which has an impact on the aerodynamic loss to some extent. Total pressure ratio, adiabatic efficiency and mass flow rate can be regulated by different openings of the vane. Compared with -8° vane opening, top efficiency of the ram-rotor increases by about 13.8% at ＋6° opening. And total pressure ratio drops by 5.87%. The rising opening increases the relative Mach number at inlet of the ram-rotor and weakens the intensity of the tip clearance leakage, which comes to a decreasing aerodynamic loss.
ISSN:1003-2169
1993-033X
DOI:10.1007/s11630-016-0852-0