Aerodynamic Performance Analysis of Axial-Flow Turbines

2006 ◽  
pp. 93-131
Keyword(s):  
Performance Analysis ◽  
Axial Flow ◽  
Aerodynamic Performance

A torque matched aerodynamic performance analysis method for the horizontal axis wind turbines

Wind Energy ◽  
2013 ◽  
Vol 17 (11) ◽  
pp. 1727-1736 ◽  
Author(s):  
Ali Al-Abadi ◽  
Özgür Ertunç ◽  
Horst Weber ◽  
Antonio Delgado
Keyword(s):  
Performance Analysis ◽  
Wind Turbines ◽  
Aerodynamic Performance ◽  
Horizontal Axis ◽  
Analysis Method ◽  
Horizontal Axis Wind Turbines

Aerodynamics of Contra-Rotating Fans With Swept Blades

2015 ◽  
Author(s):  
K. Vijayraj ◽  
M. Govardhan
Keyword(s):  
Rotational Speed ◽  
Axial Flow ◽  
Pressure Rise ◽  
Aerodynamic Performance ◽  
The Other ◽  
Flow Structures ◽  
Current Investigation ◽  
Rotating System ◽  
Stall Margin ◽  
Static Head

A Counter-Rotating System (CRS) is composed of a front rotor and a rear rotor which rotates in the opposite direction. Compared with traditional rotor-stator system, the rear rotor is used not only to recover the static head but also to supply energy to the fluid. Therefore, to achieve the same performance, the use of a CRS may lead to a reduction of the rotational speed and may generate better homogeneous flow downstream of the stage. On the other hand, the mixing area in between the two rotors induces complicated interacting flow structures. Blade sweep has attracted the turbomachinery blade designers owing to a variety of performance benefits it offers. However, the effect of blade sweep on the performance, stall margin improvements whether it is advantageous/disadvantageous to sweep one or both rotors has not been studied till now. In the current investigation blade sweep on the performance characteristics of contra rotating axial flow fans are studied. Two sweep schemes (axial sweeping and tip chord line sweeping) are studied for two sweep angles (20° and 30°). Effect of blade sweep on front rotor and rear rotor are dealt separately by sweeping one at a time. Both rotors are swept together and effect of such sweep scheme on the aerodynamic performance of the stage is also reported here. The performance of contra rotating fan is significantly affected by all these parameters. Blade sweep improved the pressure rise and stall margin of front rotors. Axially swept rotors are found to have higher pressure rise with reduced incidence losses near the tip for front rotors. Sweeping the rear rotor is not effective since the pressure rise is less than that of unswept rotor and also has less stall margin.

scholarly journals Performance analysis of axial flow pump on gap changing between impeller and guide vane

2013 ◽  
Vol 52 (3) ◽  
pp. 032011
Author(s):  
W J Wang ◽  
Q H Liang ◽  
Y Wang ◽  
Y Yang ◽  
G Yin ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Guide Vane ◽  
Axial Flow ◽  
Axial Flow Pump ◽  
Flow Pump

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO2 (sCO2 )-water mixtures from geothermal reservoirs

2019 ◽  
Vol 43 (6) ◽  
pp. 2327-2342 ◽  
Author(s):  
Zongliang Qiao ◽  
Youfei Tang ◽  
Lei Zhang ◽  
Chunjian Pan ◽  
Carlos E. Romero ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Supercritical Co2 ◽  
Optimization Design ◽  
Axial Flow ◽  
Geothermal Reservoirs
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