PIV-based estimation of DBD plasma-actuator force terms

Kriegseis, Jochen; Schwarz, Clemens; Duchmann, Alexander; Grundmann, Sven; Tropea, Cameron

doi:10.2514/6.2012-411

Cited by 34 publications

(21 citation statements)

References 20 publications

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“…The distribution of force over the volume of gas is calculated from velocity measurements by resolving simplified Navier-Stokes equations where the pressure contribution is neglected (it is considered that the EHD force dominates the pressure gradient). The time-averaged total EHD force is in agreement with the literature (Debien et al 2012b, c;Neumann et al 2013), and the mean spatial distribution is similar to the topology reported in Kriegseis et al (2012) (see Fig. 25a).…”

Section: Ehd Force Resolved In Space and In Timesupporting

confidence: 81%

“…Furthermore, it was shown that the wall viscous drag should increase when the plasma volume is reduced. This study numerically suggests that significant energy dissipation by viscous effect occurs during the AC cycle, as it was later demonstrated in Kriegseis et al (2012).…”

Section: Ehd Force Resolved In Space and In Timementioning

confidence: 55%

“…In a second part, three examples of EHD force estimation are presented. The easiest way to access the spatial distribution of the mean EHD force deals with the computation of the force from PIV time-averaged velocity fields (Kriegseis et al 2012). In this case, the force is not resolved in time, but it is resolved in space.…”

Section: Ehd Force Resolved In Space and In Timementioning

confidence: 99%

“…In this case, the force is not resolved in time, but it is resolved in space. Kriegseis et al (2012) implemented different integral and differential force estimation approaches. The authors demonstrated that the intensity and the domain, in which the force acts, increase with the electrical power consumption, in agreement with experimental measurements (such as presented in Figs.…”

Section: Ehd Force Resolved In Space and In Timementioning

confidence: 99%

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Electrical and mechanical characteristics of surface AC dielectric barrier discharge plasma actuators applied to airflow control

2014

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Sherman 1998). Then, different groups already having background experiences on corona discharges and their interactions with quiescent or moving flows formed a new highly motivated community that contributes to the dissemination of the advantages and relevancy of non-thermal plasma discharges as an alternative to conventional flow actuators (Moreau 2007;Corke et al. 2009Corke et al. , 2010. Rapidly, the number of publications in journals and conference exponentially grows to finally become a full interdisciplinary research field. The sudden interest for surface dielectric barrier discharge (DBD) energized by AC high voltage for manipulating airflows was initially motivated by the easy implementation of these actuators and a possible retrofitting on existing airfoils. They have the capability to be mounted at the surface of linear or curved objects with a minimal protrusion in the flow. Beside, their location can be changed faster than other active actuators that require a new model for each new position of actuation. The amplitude and frequency of the electrohydrodynamic (EHD) force produced by the surface plasma are directly connected to the driven electrical signal, this being a clear advantage for parametric studies on the sensibility of one flow to well-defined perturbations. Indeed, the EHD force (also referred as EFD force for electro-fluid dynamic) and the resulting produced flow called electric wind or ionic wind are due to electric field that acts on charged species. These charged species are produced by physical phenomena such as ionization, recombination, attachment, detachment and photoionization, which occur at timescale of a few picoseconds (Boeuf et al. 2009a). Subsequently, the produced body force, despite being low-pass filtered by fluid mechanical laws (viscosity, energy exchanges, dissipation) to produce electric wind, has a high bandwidth. Plasma actuators, and more specifically dielectric barrier discharge actuators, have demonstrated their authority to Abstract The present paper is a wide review on AC surface dielectric barrier discharge (DBD) actuators applied to airflow control. Both electrical and mechanical characteristics of surface DBD are presented and discussed. The first half of the present paper gives the last results concerning typical single plate-to-plate surface DBDs supplied by a sine high voltage. The discharge current, the plasma extension and its morphology are firstly analyzed. Then, time-averaged and time-resolved measurements of the produced electrohydrodynamic force and of the resulting electric wind are commented. The second half of the paper concerns a partial list of approaches having demonstrated a significant modification in the discharge behavior and an increasing of its mechanical performances. Typically, single DBDs can produce mean force and electric wind velocity up to 1 mN/W and 7 m/s, respectively. With multi-DBD designs, velocity up to 11 m/s has been measured and force up to 350 mN/m.

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Section: Ehd Force Resolved In Space and In Timesupporting

confidence: 81%

Section: Ehd Force Resolved In Space and In Timementioning

confidence: 55%

Section: Ehd Force Resolved In Space and In Timementioning

confidence: 99%

Section: Ehd Force Resolved In Space and In Timementioning

confidence: 99%

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Electrical and mechanical characteristics of surface AC dielectric barrier discharge plasma actuators applied to airflow control

2014

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“…A very signi¦cant contribution of viscous drag in total thrust produced by single DBDactuator was emphasized in [16]. Local skin friction can be measured by more complex and precise methods than used here, for example, by particle image velocimetry [17]. Nevertheless, a crude estimate can be obtained using the data of Fig.…”

Section: Measurements Of the Induced Flow Velocitymentioning

confidence: 94%

Simple design of multiple aerodynamic plasma actuator

Chernyshev

Gamirullin

Kuryachii

et al. 2017

Progress in Flight Physics

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A new simple design of multiple dielectric barrier discharge (DBD) actuator intended for gas §ow acceleration in thin boundary layer on lengthy aerodynamic surface is proposed. The operability of the considered multi-DBD-actuator is con¦rmed experimentally. Proposed method of measurements of the electric power consumed by the actuator permits to estimate this value simply and with acceptable accuracy. The thrust generated by DBD-actuator and thrust-to-power relation were estimated owing to pressure probe measurements of the induced §ow velocity.

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Stabilization of Laminar Boundary‐Layer Flow using Dielectric Barrier Discharge Plasma Actuators

Duchmann

Vieira

Grundmann

et al. 2012

Proc Appl Math and Mech

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A numerical method is developed to study the stabilizing effect of dielectric barrier discharge plasma actuators on laminar boundary-layer flow. A finite difference approach based on a Keller box discretization is chosen to solve the Falkner-Skan transformed boundary-layer equations. The fluid dynamic effect of the flow-control device is implemented as a body-force field, derived quantitatively from previous measurements using particle image velocimetry. The resulting laminar boundarylayer flow is compared to experimental wind tunnel measurements and the effect on hydrodynamic stability is investigated in the framework of linear stability theory. A good agreement between experimentally acquired and numerically predicted transition locations based on an empirical function is obtained, rendering the numerical scheme valuable as a design tool for DBD based flow control applications.

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PIV-based estimation of DBD plasma-actuator force terms

Cited by 34 publications

References 20 publications

Electrical and mechanical characteristics of surface AC dielectric barrier discharge plasma actuators applied to airflow control

Electrical and mechanical characteristics of surface AC dielectric barrier discharge plasma actuators applied to airflow control

Simple design of multiple aerodynamic plasma actuator

Stabilization of Laminar Boundary‐Layer Flow using Dielectric Barrier Discharge Plasma Actuators

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