Plasma Actuator with Multiple Encapsulated Electrodes to Influence the Induced Velocoty

Hale, Craig; Erfani, Rasool; Kontis, Konstantinos

doi:10.2514/6.2010-1223

Cited by 9 publications

(12 citation statements)

References 41 publications

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“…Also, the most effective electrode structure is identified in their study [1]. Hale et al (2010) reported that the multiple encapsulate electrode structure effects the induced jet structure. Their results revealed that the generated induced jet positions have influence on the jet length.…”

Section: Resultsmentioning

confidence: 99%

Optimisation of Wire Electro Discharge Machining Parameter Using Desirability Based Multi Objective RSM While Machining of Al6061–Cenosphere AMCs

Dey¹,

Pandey²,

Das³

2017

Mechanical Engineering

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The aim of SEEP2017 is to bring together the researches within the field of sustainable energy and environmental protection from all over the world.The contributed papers are grouped in 18 sessions in order to provide access to readers out of 300 contributions prepared by authors from 52 countries.We thank the distinguished plenary and keynote speakers and chairs who have kindly consented to participate at this conference. We are also grateful to all the authors for their papers and to all committee members.We believe that scientific results and professional debates shall not only be an incentive for development, but also for making new friendships and possible future scientific development projects. The footprint assessment techniques has provided a set of tools enabling the evaluation of Greenhouse Gas (GHG) -including CO2, emissions and the corresponding effective flows on the world scale. From all such indicators, the energy footprint represents the area of forest that would be required to absorb the GHG emissions resulting from the energy consumption required for a certain activity, excluding the proportion absorbed by the oceans, and the area occupied by hydroelectric dams and reservoirs for hydropower.An overview of the virtual GHG flow trends in the international trade, associating the GHG and water footprints with the consumption of goods and services is performed. Several important indications have been obtained: (a) There are significant GHG gaps between producer's and consumer's emissions -US and EU have high absolute net imports GHG budget. (b) China is an exporting country and increasingly carries a load of GHG emission and virtual water export associated with consumption in the relevant importing countries. (c) International trade can reduce global environmental pressure by redirecting import to products produced with lower intensity of GHG emissions and lower water footprints, or producing them domestically.To develop self-sufficient regions based on more efficient processes by combining neighbouring countries can be a promising development. A future direction should be focused on two main areas: (1) To provide the self-sufficient regions based on more efficient processes by combining production of surrounding countries. (2) To develop the shared mechanism and market share of virtual carbon between trading partners regionally and internationally. HAKAN SERHAD SOYHAN 4 Development in energy sector, technological advancements, production and consumption amounts in the countries and environmental awareness give shape to industry of energy. When the dependency is taken into account in terms of natural resources and energy, there are many risks for countries having no fossil energy sources. Renewable and clean sources of energy and optimal use of these resources minimize environmental impacts, produce minimum secondary wastes and are sustainable based on current and future economic and social societal needs. Sun is one of the main energy sources in recent years. Light and heat of sun are used in...

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Section: Resultsmentioning

confidence: 99%

Optimisation of Wire Electro Discharge Machining Parameter Using Desirability Based Multi Objective RSM While Machining of Al6061–Cenosphere AMCs

Dey¹,

Pandey²,

Das³

2017

Mechanical Engineering

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“…The design variables are listed in Table 1. It should be noted that, following the ranges presented in Hale et al [14,15] the same intervals for the design variables are chosen to make the future comparisons possible. For velocity estimation in problem (2), Response Surface Methodology (RSM) is implemented next.…”

Section: Problem Definitionmentioning

confidence: 99%

“…A new design of plasma actuator developed at the University of Manchester has been shown to increase the induced velocity by 90% using multiple encapsulated electrodes [14][15][16]. In the standard actuator design the electric field decays as one moves further away from the exposed electrode.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of multiple encapsulated electrode plasma actuator

Erfani

Utyuzhnikov

et al. 2013

Aerospace Science and Technology

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The standard dielectric barrier discharge plasma actuator, in which an asymmetric arrangement of electrodes leads to momentum coupling into the surrounding air, has already demonstrated its capability for flow control. The new design of such an actuator exploits the multi-encapsulated electrodes to produce higher velocities providing more momentum into the background air. As the number of encapsulated electrodes increases and other variables such as the driving frequency and voltage amplitude are considered, finding the optimum actuator configuration for increasing the induced velocity becomes a challenge. Specially the task is prohibitive if it is implemented on an ad hoc basis. This paper uses D-optimal design to identify a handful of experiments, for which the velocity is obtained by Particle Imaging Velocimetry measurement. Afterwards, the velocity is modelled through a surrogate modelling practice, and the model is validated both experimentally and statistically. To find the optimum actuator configuration, numerical optimisation is conducted and the results are investigated through experiment. The results show that the surrogate modelling approach provides a cheap and yet efficient method for systematically investigating the effect of different parameters on the performance of the plasma actuator.

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“…Also, the most effective electrode structure is identified in their study. Hale et al [2] reported that the multiple encapsulate electrode structure affects the induced jet structure. Their results revealed that the generated induced jet positions have an influence on the jet length.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Plasma Actuator Electrode Geometry Configurations for Improvement of the Aerodynamic Performance of an Airfoil

Akbıyık¹,

Yavuz²,

Akansu³

2018

SV-JME

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In this study, the induced flow effects of plasma generated by various types of electrode geometry configurations are presented. The model chosen for the study is a NACA0015 airfoil. The experiments are conducted in a wind tunnel at Reynolds number of 4.8×10 4. The plasma actuators mounted on the leading edge of the airfoil at chord position of 0.1 (x/C). The plasma actuators consist of an embedded and exposed electrode between which a dielectric material is placed. The applied voltage is set to 7 kV pp. The excitation frequency is also set to 3.5 kHz. Three different electrode geometry configurations, namely as linear, saw-tooth and square, are considered for the study. As a part of the experimental study, the two dimensional and three dimensional flow structures generated by the plasma actuators and related analysis results are presented. In addition, necessary measurements are also made to determine the drag and lift forces. Keywords: NACA0015 airfoil, lift and drag coefficients, square plasma actuator, sawtooth plasma actuator, linear plasma actuator Highlights • The 2D and 3D flow structure generated by the plasma actuators. • The plasma actuator geometry is determined according to the necessary conditions of the aircraft. • The stall angle is shifted by 2 degrees.

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Plasma Actuator with Multiple Encapsulated Electrodes to Influence the Induced Velocoty

Cited by 9 publications

References 41 publications

Optimisation of Wire Electro Discharge Machining Parameter Using Desirability Based Multi Objective RSM While Machining of Al6061–Cenosphere AMCs

Optimisation of Wire Electro Discharge Machining Parameter Using Desirability Based Multi Objective RSM While Machining of Al6061–Cenosphere AMCs

Optimisation of multiple encapsulated electrode plasma actuator

A Study on the Plasma Actuator Electrode Geometry Configurations for Improvement of the Aerodynamic Performance of an Airfoil

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