This paper presents a numerical and experimental assessment of a plasma actuation concept for controlling corner stall separation in a highly loaded compressor cascade. CFD simulations were first carried out to assess actuator effectiveness and determine the best actuation parameters. Subsequently, experiments were performed to demonstrate the concept and confirmed the CFD tool validity at a Reynolds number of 1.5 × 105. Finally, the validated CFD tool was used to simulate the concept at higher velocities, beyond the experimental capability of existing plasma actuators. These results were used to obtain a preliminary scaling law that would allow approximation of the plasma actuation requirements at realistic operating conditions. Several configurations were examined, but the most effective setup was found to be when plasma actuators were mounted upstream of the separation point on both the suction surface and the endwall. Most of the improvement in total pressure loss stemmed from the suction surface actuator. Comparison with experimental data showed that the CFD simulations could capture the flow features and the effect of plasma actuation reasonably well. Simulations at higher flow velocities indicated that the required plasma actuator strength scales approximately with the square of the Reynolds number.
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August 2016
Research-Article
Controlling Corner Stall Separation With Plasma Actuators in a Compressor Cascade
Eray Akcayoz,
Eray Akcayoz
Mem. ASME
Pratt & Whitney Canada,
1000 Marie-Victorin Boulevard,
Longueuil, QC J4G 1A1 Canada
e-mail: eray.akcayoz@pwc.ca
Pratt & Whitney Canada,
1000 Marie-Victorin Boulevard,
Longueuil, QC J4G 1A1 Canada
e-mail: eray.akcayoz@pwc.ca
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Huu Duc Vo,
Huu Duc Vo
Mem. ASME
Department of Mechanical Engineering,
École Polytechnique de Montréal,
2900 boulevard Edouard-Montpetit,
2500 chemin de Polytechnique,
Montreal, QC H3T 1J4, Canada
e-mail: huu-duc.vo@polymtl.ca
Department of Mechanical Engineering,
École Polytechnique de Montréal,
2900 boulevard Edouard-Montpetit,
2500 chemin de Polytechnique,
Montreal, QC H3T 1J4, Canada
e-mail: huu-duc.vo@polymtl.ca
Search for other works by this author on:
Ali Mahallati
Ali Mahallati
Search for other works by this author on:
Eray Akcayoz
Mem. ASME
Pratt & Whitney Canada,
1000 Marie-Victorin Boulevard,
Longueuil, QC J4G 1A1 Canada
e-mail: eray.akcayoz@pwc.ca
Pratt & Whitney Canada,
1000 Marie-Victorin Boulevard,
Longueuil, QC J4G 1A1 Canada
e-mail: eray.akcayoz@pwc.ca
Huu Duc Vo
Mem. ASME
Department of Mechanical Engineering,
École Polytechnique de Montréal,
2900 boulevard Edouard-Montpetit,
2500 chemin de Polytechnique,
Montreal, QC H3T 1J4, Canada
e-mail: huu-duc.vo@polymtl.ca
Department of Mechanical Engineering,
École Polytechnique de Montréal,
2900 boulevard Edouard-Montpetit,
2500 chemin de Polytechnique,
Montreal, QC H3T 1J4, Canada
e-mail: huu-duc.vo@polymtl.ca
Ali Mahallati
Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the JOURNAL OF TURBOMACHINERY. Manuscript received January 16, 2016; final manuscript received January 29, 2016; published online March 30, 2016. Editor: Kenneth C. Hall.
J. Turbomach. Aug 2016, 138(8): 081008 (13 pages)
Published Online: March 30, 2016
Article history
Received:
January 16, 2016
Revised:
January 29, 2016
Citation
Akcayoz, E., Duc Vo, H., and Mahallati, A. (March 30, 2016). "Controlling Corner Stall Separation With Plasma Actuators in a Compressor Cascade." ASME. J. Turbomach. August 2016; 138(8): 081008. https://doi.org/10.1115/1.4032675
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