Effects of a Surface Dielectric Barrier Discharge on Transonic Flows Around an Airfoil

Pavon, S.; Ott, Peter; Leyland, Pénélope; Dorier, J.‐L.; Hollenstein, Ch.

doi:10.2514/6.2009-649

Cited by 13 publications

(6 citation statements)

References 13 publications

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“…Interesting experiments (for attack angles up to 20 degrees and a flow rate of 110 m/s) were performed by a scientific group from Russia [36][37][38][39]. The influence of air humidity on the sliding surface discharge while controlling the flow is described in [40,41]. The two main advantages of such a discharge Figure 6a shows that a large area of plasma can be created (this requires at least 7 kV per centimeter between electrode 1 and electrode 2).…”

Section: Pulsed Nanosecond Surface Dischargesmentioning

confidence: 99%

Section: Pulsed Nanosecond Surface Dischargesmentioning

confidence: 99%

“…In all the above experimental cases [30][31][32] and [33][34][35][36][37][38][39][40][41], perturbations (from «thermal» and «plasma» effects) are determined by parameters of thermal and plasma sources (actuators), geometry of the arrester, component composition of the environment, etc. In order to study the physical basis of the change in the current structure near the AA, we will obtain an expression for vorticity…”

Section: Pulsed Nanosecond Surface Dischargesmentioning

confidence: 99%

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Computational and Experimental Modeling in Magnetoplasma Aerodynamics and High-Speed Gas and Plasma Flows (A Review)

2023

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This paper provides an overview of modern research on magnetoplasma methods of influencing gas-dynamic and plasma flows. The main physical mechanisms that control the interaction of plasma discharges with gaseous moving media are indicated. The ways of organizing pulsed energy input, characteristic of plasma aerodynamics, are briefly described: linearly stabilized discharge, magnetoplasma compressor, capillary discharge, laser-microwave action, electron beam action, nanosecond surface barrier discharges, pulsed spark discharges, and nanosecond optical discharges. A description of the physical mechanism of heating the gas-plasma flow at high values of electric fields, which are realized in high-current and nanosecond (ultrafast heating) electric discharges, is performed. Methods for magnetoplasma control of the configuration and gas-dynamic characteristics of shock waves arising in front of promising and advanced aircraft (AA) are described. Approaches to the control of quasi-stationary separated flows, laminar–turbulent transitions, and static and dynamic separation of the boundary layer (for large PA angles of attack) are presented.

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Section: Pulsed Nanosecond Surface Dischargesmentioning

confidence: 99%

Section: Pulsed Nanosecond Surface Dischargesmentioning

confidence: 99%

Section: Pulsed Nanosecond Surface Dischargesmentioning

confidence: 99%

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Computational and Experimental Modeling in Magnetoplasma Aerodynamics and High-Speed Gas and Plasma Flows (A Review)

2023

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“…Consequently, the discharge intensity changes for changing ambient pressure p at constant operating voltages V. Abe et al 20 and Benard et al, 16,17 for instance, report a significant increase of power consumption P A and plasma length Dx for decreasing pressure levels in the range of p ¼ 0.2-1 bar. Pavon et al 30 mention a pressure influence in combination with their airflow impact reports when changing the plasma-actuator location on an airfoil's relative chord position x/c. Furthermore, a comprehensive study of pressure effects by Valerioti and Corke 18 shows the nonlinear relation of ambient pressure and plasma-actuator thrust production for varying pressure levels (p ¼ 0.17-9.0 bar).…”

Section: Introductionmentioning

confidence: 99%

Competition between pressure effects and airflow influence for the performance of plasma actuators

Kriegseis¹,

Barckmann²,

Frey³

et al. 2014

Physics of Plasmas

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Articles you may be interested inCapacitances and energy deposition curve of nanosecond pulse surface dielectric barrier discharge plasma actuator Rev. Sci. Instrum. 85, 053501 (2014); 10.1063/1.4871552Effects of pulse polarity on nanosecond pulse driven dielectric barrier discharge plasma actuators Vortical flow control on a conical fore body cross section using an array of pulsed dc actuatorsThe present work addresses the combined influence of pressure variations and different airflow velocities on the discharge intensity of plasma actuators. Power consumption, plasma length, and discharge capacitance were investigated systematically for varying pressure levels (p ¼ 0.1-1 bar) and airflow velocities (U 1 ¼ 0 À 100 m/s) to characterize and quantify the favorable and adverse effects on the discharge intensity. In accordance with previous reports, an increasing plasma actuator discharge intensity is observed for decreasing pressure levels. At constant pressure levels, an adverse airflow influence on the electric actuator performance is demonstrated. Despite the improved discharge intensity at lower pressure levels, the seemingly improved performance of the plasma actuators is accompanied with a more pronounced drop of the relative performance. These findings demonstrate the dependency of the (kinematic and thermodynamic) environmental conditions on the electric performance of plasma actuators, which in turn affects the control authority of plasma actuators for flow control applications. V C 2014 AIP Publishing LLC.

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“…At higher flow velocities, this equivalent wall-jet does not seem to produce significant effects. In a previous study at EPFL, Pavon et al 3,4 investigated the interaction between an AC-DBD actuator mounted on a NACA 3506 profile in transonic flow, where no noticeable effect of the actuator on the shock wave buffeting and strength was observed. However, a strong effect on the discharge plasma state was produced with increasing speeds.…”

Section: Introductionmentioning

confidence: 99%

Understanding SDBD Actuators: An Experimental Study on Plasma Characteristics

Geuns

Goekce

Plyushchev

et al. 2014

45th AIAA Plasmadynamics and Lasers Conference

Self Cite

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The working mechanisms of surface dielectric barrier discharge (SDBD) plasma actuators foreseen as aerodynamic control devices is investigated experimentally on a common platform, referred to as the NATO-AVT-RTO-190 test case. A better understanding of the working principle and characteristics of SDBD paves the way for more efficient and safe use of plasma actuators in aerodynamic applications. In this study, a characterisation of the plasma is done by current measurements, fast-camera plasma imaging and force measurements. Furthermore, more advanced plasma characteristics such as reduced electric field and excited species population are found by Optical Emission Spectroscopy. The collective goal of this research is to contribute to a database which can also be used for numerical verification and validation by varying the key parameters such as frequency and voltage.

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Effects of a Surface Dielectric Barrier Discharge on Transonic Flows Around an Airfoil

Cited by 13 publications

References 13 publications

Computational and Experimental Modeling in Magnetoplasma Aerodynamics and High-Speed Gas and Plasma Flows (A Review)

Computational and Experimental Modeling in Magnetoplasma Aerodynamics and High-Speed Gas and Plasma Flows (A Review)

Competition between pressure effects and airflow influence for the performance of plasma actuators

Understanding SDBD Actuators: An Experimental Study on Plasma Characteristics

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