Effect of forcing the tip-gap of a NACA0065 airfoil using plasma actuators: A proof-of-concept study

Anzalotta, Christian Andres; Joshi, Kamlesh; Fernandez, Erik J.; Bhattacharya, Samik

doi:10.1016/j.ast.2020.106268

Cited by 20 publications

(8 citation statements)

References 23 publications

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“…Various studies have been performed since then to understand the influence of dielectric thickness and electrode structure [42], and the influence of the applied voltage signal [43,44], to estimate the plasma force produced [45], to propose new configurations [46,47] and new dielectric materials [48,49] or to increase the durability of the device [50]. The studies performed have focused on different applications and have proven the potential of plasma actuators for separation control [51], transitional flow control [52], wake control [53], airfoil tip gap forcing [54], flow modification based on harmonic forcing [55][56][57], noise reduction [58], improvement in vectorized thrusters' efficiency [59], or the enhancement of wind power production [60]. Recently, a few authors have also demonstrated that the potential of plasma actuators is not limited to flow control applications by proving that these devices generate considerable thermal effects that can be used for ice mitigation applications [61,62].…”

Section: Introductionmentioning

confidence: 99%

Plasma Actuators for Cycloidal Rotor Thrust Vectoring Enhancement in Airships

Benmoussa,

Rodrigues,

Páscoa

2023

Actuators

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Airships are a method of transportation with reduced fuel consumption and great potential for different applications. However, these aerial vehicles still present considerable control and maneuverability problems. To overcome these issues, in the current work, we propose the use of plasma-enhanced cycloidal rotor thrusters to increase the controllability and maneuverability of airships. Numerical simulations are carried out to demonstrate the potential of plasma actuators to enhance the efficiency and thrust vectoring capabilities of cycloidal rotors. The fluid dynamics of the flow effects created via the operation of the cycloidal rotor is analyzed with and without plasma actuation. In addition, smart combined plasma actuation is proposed to further optimize the plasma-coupled cycloidal rotor device. The results demonstrated that by using this novel approach, the lift coefficient was increased by about 27%. To summarize, the obtained results for a rotational speed of 100 rpm are compared with results for 200 rpm, and it is demonstrated that for lower rotational speeds, the plasma effect is increased and more significant. This allows us to conclude that airships are an ideal application for plasma-enhanced cycloidal rotors, because since the lift is mostly generated via aerostatic principles, the plasma-enhanced thruster can be operated at lower rotational speeds and effectively increase the controllability and maneuverability of the aerial vehicle.

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Section: Introductionmentioning

confidence: 99%

Plasma Actuators for Cycloidal Rotor Thrust Vectoring Enhancement in Airships

Benmoussa,

Rodrigues,

Páscoa

2023

Actuators

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“…However, there are many studies in which active devices are used, as the achievable aerodynamic improvements are much higher. For example, Anzalotta et al (2020) used plasma actuators for controlling the flow through the tip gap of a NACA0065 airfoil, Julian et al (2022) proposed a co-flow jet for improving the aerodynamic performance of a NACA0015 airfoil, Spens et al (2023) added curved fluidic oscillators on the leading edge of a NACA0018 airfoil and Anılır et al (Anılır et al) used TE flaps on a NACA0012 airfoil, with a predetermined oscillation.…”

Section: Introductionmentioning

confidence: 99%

Active Flow Control on Airfoils by Reinforcement Learning

Portal-Porras,

Fernandez-Gamiz,

Zulueta

et al. 2023

Preprint

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“…Flamm [17] used a six-component strain gauge balance to obtain the thrust vectoring characteristics of a fluidic counterflow nozzle. PIV can acquire the flow field in space in the form of non-contact measurement [18]. Raman et al [19] used PIV to investigate the flow structures of a jet in a miniature fluidic oscillator.…”

Section: Introductionmentioning

confidence: 99%

An Optimized Pressure-Based Method for Thrust Vectoring Angle Estimation

Shi,

Gu,

et al. 2023

Aerospace

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This research developed a pressure-based thrust vectoring angle estimation method for fluidic thrust vectoring nozzles. This method can accurately estimate the real-time in-flight thrust vectoring angle using only wall pressure information on the inner surface of the nozzle. We proposed an algorithm to calculate the thrust vectoring angle from the wall pressure inside the nozzle. Non-dominated sorting genetic algorithm II was applied to find the optimal sensor arrays and reduce the wall pressure sensor quantity. Synchronous force and wall pressure measurement experiments were carried out to verify the accuracy and real-time response of the pressure-based thrust vectoring angle estimation method. The results showed that accurate estimation of the thrust vectoring angle can be achieved with a minimum of three pressure sensors. The pressure-based thrust vectoring angle estimation method proposed in this study has a good prospect for engineering applications; it is capable of accurate real-time in-flight monitoring of the thrust vectoring angle. This method is important and indispensable for the closed-loop feedback control and aircraft attitude control of fluidic thrust vectoring control technology.

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Effect of forcing the tip-gap of a NACA0065 airfoil using plasma actuators: A proof-of-concept study

Cited by 20 publications

References 23 publications

Plasma Actuators for Cycloidal Rotor Thrust Vectoring Enhancement in Airships

Plasma Actuators for Cycloidal Rotor Thrust Vectoring Enhancement in Airships

Active Flow Control on Airfoils by Reinforcement Learning

An Optimized Pressure-Based Method for Thrust Vectoring Angle Estimation

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