Effects of Input Voltage on Flow Separation Control for Low-Pressure Turbine at Low Reynolds Number by Plasma Actuators
Joint Authors
Segawa, Takehiko
Matsunuma, Takayuki
Source
International Journal of Rotating Machinery
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-13
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Active flow control using dielectric barrier discharge (DBD) plasma actuators was investigated to reattach the simulated boundary layer separation on the suction surface of a turbine blade at low Reynolds number, Re = 1.7 × 104.
The flow separation is induced on a curved plate installed in the test section of a low-speed wind tunnel.
Particle image velocimetry (PIV) was used to obtain instantaneous and time-averaged two-dimensional velocity measurements.
The amplitude of input voltage for the plasma actuator was varied from ±2.0 kV to ±2.8 kV.
The separated flow reattached on the curved wall when the input voltage was ±2.4 kV and above.
The displacement thickness of the boundary layer near the trailing edge decreased by 20% at ±2.0 kV.
The displacement thickness was suddenly reduced as much as 56% at ±2.2 kV, and it was reduced gradually from ±2.4 kV to ±2.8 kV (77% reduction).
The total pressure loss coefficient, estimated from the boundary layer displacement thickness and momentum thickness, was 0.172 at the baseline (actuator off) condition.
The total pressure loss was reduced to 0.107 (38% reduction) at ±2.2 kV and 0.078 (55% reduction) at ±2.8 kV.
American Psychological Association (APA)
Matsunuma, Takayuki& Segawa, Takehiko. 2012. Effects of Input Voltage on Flow Separation Control for Low-Pressure Turbine at Low Reynolds Number by Plasma Actuators. International Journal of Rotating Machinery،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-506648
Modern Language Association (MLA)
Matsunuma, Takayuki& Segawa, Takehiko. Effects of Input Voltage on Flow Separation Control for Low-Pressure Turbine at Low Reynolds Number by Plasma Actuators. International Journal of Rotating Machinery No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-506648
American Medical Association (AMA)
Matsunuma, Takayuki& Segawa, Takehiko. Effects of Input Voltage on Flow Separation Control for Low-Pressure Turbine at Low Reynolds Number by Plasma Actuators. International Journal of Rotating Machinery. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-506648
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506648