Performance improvement and start-up characteristics of a cyclorotor using multiple plasma actuators

Benmoussa, Amine; Páscoa, José

doi:10.1007/s11012-021-01413-4

Cited by 12 publications

(6 citation statements)

References 53 publications

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“…One of the latest proposed deicing technologies is based on the use of surface dielectric barrier discharge (DBD) plasma actuators. These simple devices have been studied over the years for active flow control and aerodynamic efficiency improvement [24][25][26][27]. However, only recently have researchers started to investigate the possibility of using the thermal effects produced by these devices for deicing and anti-icing purposes [28,29].…”

Section: Introductionmentioning

confidence: 99%

Recent Developments on Dielectric Barrier Discharge (DBD) Plasma Actuators for Icing Mitigation

et al. 2022

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Ice accretion is a common issue on aircraft flying in cold climate conditions. The ice accumulation on aircraft surfaces disturbs the adjacent airflow field, increases the drag, and significantly reduces the aircraft’s aerodynamic performance. It also increases the weight of the aircraft and causes the failure of critical components in some situations, leading to premature aerodynamic stall and loss of control and lift. With this in mind, several authors have begun to study the thermal effects of plasma actuators for icing control and mitigation, considering both aeronautical and wind energy applications. Although this is a recent topic, several studies have already been performed, and it is clear this topic has attracted the attention of several research groups. Considering the importance and potential of using dielectric barrier discharge (DBD) plasma actuators for ice mitigation, we aim to present in this paper the first review on this topic, summarizing all the information reported in the literature about three major subtopics: thermal effects induced by DBD plasma actuators, plasma actuators’ ability in deicing and ice formation prevention, and ice detection capability of DBD plasma actuators. An overview of the characteristics of these devices is performed and conclusions are drawn regarding recent developments in the application of plasma actuators for icing mitigation purposes.

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Section: Introductionmentioning

confidence: 99%

Recent Developments on Dielectric Barrier Discharge (DBD) Plasma Actuators for Icing Mitigation

et al. 2022

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“…The numerical simulation was carried out through ANSYS Fluent 16 software based on the finite-volume method and Navier-Stokes equations; the fluid model was coded and loaded into the solver using a user-defined function (UDF) framework [31,32]. A second order upwind scheme was used to solve the discrete equations with coupling pressure-velocity and the SIMPLE algorithm.…”

Section: Solver Settingsmentioning

confidence: 99%

Agitation of Viscoplastic Fluid in a Rotating Vessel Using Close Clearance Agitators

Benmoussa

2023

Eng

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Technological advancements have continued to progress in all fields, achieving remarkable feats. Additionally, productivity is increasing across the board as a result of strong economic expansion, which has encouraged changes in people’s way of life, such as the increasing use of pharmaceutical products, cosmetics, detergents, and food products. A hydrothermal study is required in these areas to optimize the design of the stirring system. The aim of the current work is to investigate the hydrodynamics and thermodynamics of a mechanical agitation system with a non-Newtonian fluid of the Bingham–Bercovier type in a cylindrical vessel with three blade configurations. Our research is specifically directed towards mechanically agitated systems utilizing close clearance stirrers, particularly focusing on the anchor, gate and two-bladed impellers, within cylindrical tanks that possess flat bottoms without baffles. The results show that the anchor impeller, with its broad blades and low-shear characteristics, is more suited for breaking down yield stress and inducing flow in these fluids, which creates a wide flow pattern that effectively overcomes yield stress. However, the addition of vertical arms to transform it into a gate impeller promotes mixing, heat transfer and thermal efficiency with a small energy cost compared to an anchor impeller against the two-bladed impeller.

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“…Dielectric barrier discharge (DBD) plasma actuators are recent technologies proposed for ice protection systems [11][12][13]. These electronic devices have been studied throughout the years as active flow control means [14][15][16][17]; however, lately, several authors have demonstrated that they produce considerable thermal effects that can be used for deicing or ice prevention purposes [18][19][20][21]. When the actuator is supplied with a high voltage and high-frequency signal, the adjacent air is ionized and the charged particles are accelerated downstream.…”

Section: Introductionmentioning

confidence: 99%

Development of a Background-Oriented Schlieren (BOS) System for Thermal Characterization of Flow Induced by Plasma Actuators

et al. 2023

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Cold climate regions have great potential for wind power generation. The available wind energy in these regions is about 10% higher than in other regions due to higher wind speeds and increased air density. However, these regions usually have favorable icing conditions that lead to ice accumulation on the wind turbine blades, which in turn increases the weight of the blades and disrupts local airflow, resulting in a reduction in wind turbine performance. Considering this problem, plasma actuators have been proposed as devices for simultaneous flow control and deicing. These devices transfer momentum to the local airflow, improving the aerodynamic performances of the turbine blades while producing significant thermal effects that can be used to prevent ice formation. Considering the potential application of plasma actuators for simultaneous flow control and deicing, it is very important to investigate the thermal effects induced by these devices. However, due to the significant electromagnetic interference generated by the operation of these devices, there is a lack of experimental techniques that can be used to analyze them. In the current work, a background-oriented Schlieren system was developed and is presented as a new experimental technique for the thermal characterization of the plasma-induced flow. For the first time, the induced flow temperatures are characterized for plasma actuators with different dielectric materials and different dielectric thicknesses. The results demonstrate that, due to the plasma discharge, the temperature of the plasma-induced flow increases with the increase of the applied voltage and may achieve temperatures five times higher than the room temperature, which proves the potential of plasma actuators for deicing applications. The results are presented and discussed with respect to the potential application of plasma actuators for simultaneous flow control and deicing of wind turbine blades.

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Performance improvement and start-up characteristics of a cyclorotor using multiple plasma actuators

Cited by 12 publications

References 53 publications

Recent Developments on Dielectric Barrier Discharge (DBD) Plasma Actuators for Icing Mitigation

Recent Developments on Dielectric Barrier Discharge (DBD) Plasma Actuators for Icing Mitigation

Agitation of Viscoplastic Fluid in a Rotating Vessel Using Close Clearance Agitators

Development of a Background-Oriented Schlieren (BOS) System for Thermal Characterization of Flow Induced by Plasma Actuators

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