Boundary layer flow control with a One Atmosphere Uniform Glow Disclharge Surface Plasmaa

Boundary layer flow control with a One Atmosphere Uniform Glow Disclharge Surface Plasmaa by J. Reece Roth Download PDF EPUB FB2

Boundary layer flow control with a one atmosphere uniform glow discharge surface plasma. The One Atmosphere Uniform Glow Discharge Plasma (OAUGDP)—A Platform Technology for the 21st Century.

IEEE Transactions on Plasma Science, Vol. 35, No. Abstract. Low speed wind tunnel data have been acquired for planar panels covered by a uniform, glow-discharge surface plasma in atmospheric pressure air known as the One Atmosphere Uniform Glow Discharge Plasma (OAUGDP).

Streamwise and spanwise arrays of flush, plasma-generating surface electrodes have been studied in laminar, transitional, and fully turbulent boundary layer flow. P.: “Boundary Layer Flow Control with a One Atmosphere Uniform Glow Discharge Surface Plasma By J. Reece Roth, Daniel M.

Sherman, Stephen P. Wilkinson, J. Reece Roth, Daniel M. Sherman and Stephen P. Wilkinson T. Boundary layer flow control with a one atmosphere uniform glow discharge surface plasma کنترل جریان لایه مرزی با استفاده از پلاسمای سطح تخلیه یک اتمسفر،. BibTeX @INPROCEEDINGS{Roth_p.:“boundary, author = {J.

Reece Roth and Daniel M. Sherman and Stephen P. Wilkinson and J. Reece Roth and Daniel M. Sherman and Stephen P. Wilkinson T}, title = {P.: “Boundary Layer Flow Control with a One Atmosphere Uniform Glow Discharge Surface Plasma}, booktitle = {AIAA PaperProc.

of the 36th AIAA Aerospace Sciences Meeting & Exhibit}, year. We have demonstrated the use of Lorentzian momentum transfer from the One Atmosphere Uniform Glow Discharge Plasma (OAUGDP) to exert electrohydrodynamic (EHD) body forces on aerodynamic flows using two physical processes [1].

One process is the use of paraelectric (the electrostatic analog of paramagnetism) flow acceleration by a surface OAUGDP generated by asymmetric plasma actuators. Boundary Layer Flow Control with a One Atmosphere Uniform Glow Discharge Surface Plasma Low speed wind tunnel data have been acquired for planar panels covered by a uniform, glow-discharge surface plasma in atmospheric pressure air known as the One Atmosphere Uniform Glow Discharge Plasma (OAUGDP).

Streamwise and spanwise arrays of flush, plasma-generating surface. Multiple flow diagnostics have been applied to planar panels revered by strips of glow-discharge surface plasma in atmospheric pressure air generated by the one atmosphere uniform glow discharge.

In book: New Results in Boundary layer flow control with a one atmosphere uniform glow discharge surface plasma Low speed wind tunnel data. Abstract. The development of the One Atmosphere Uniform Glow Discharge Plasma has made it possible to cover the wings and fuselage of aircraft with a thin layer of glow discharge plasma at low energy cost.

This plasma layer provides, through Lorentzian collisions, a purely electrohydrodynamic coupling between an electric field and the neutral gas in the boundary layer. J.R. Roth, D.M. Sherman and S.P. Wilkinson, Boundary layer flow control with a one atmosphere uniform glow discharge surface plasma, AIAA Paper   The term “plasma actuator” has been a part of the fluid dynamics flow control vernacular for more than a decade.

A particular type of plasma actuator that has gained wide use is based on a single dielectric barrier discharge (SDBD) mechanism that has desirable features for use in air at atmospheric pressures. For these actuators, the mechanism of flow control is through a generated.

The time-averaged boundary layer flow over the flat plate obtained by pairs of PIV images for the baseline case without the plasma actuation are shown in Fig.

The mean flow of the boundary layer is quite uniform and the distribution of the velocity is regular as shown in Fig. 4(a). P.: “Boundary Layer Flow Control with a One Atmosphere Uniform Glow Discharge Surface Plasma by J.

Reece Roth, Daniel M. Sherman, Stephen P. Wilkinson, J. Reece Roth, Daniel M. Sherman, Stephen P. Wilkinson T - AIAA PaperProc. of the 36th AIAA Aerospace Sciences Meeting & Exhibit.

The induced flow field in the vicinity of a single, symmetric, AC plasma actuator has been studied in initially static air at atmospheric pressure. Hot-wire and cold-wire anemometry, together with.

Control of Separation in Turbine Boundary Layers,” Electrohydrodynamic Flow Control with a Glow-Discharge Surface Plasma,” AIAA J., 38 Manipulating Aerodynamic Boundary Layers Using an Electrohydrodynamic Effect Generated by a One Atmosphere Uniform Glow Discharge Plasma,” Master’s thesis, University of Tennessee, Knoxville, TN.

Another type of discharge may be used to limite the glow-to-arc transition: the barrier discharge (DBD), perfected by Roth in This plasma actuator is composed by two flat electrodes flush mounted on both sides of a dielectric, as shown in Fig.

electrode is grounded and the other one is connected to a sine high voltage of several kV rms and a frequency between Hz and. The boundary layer aerodynamic flow acceleration with one atmosphere uniform induced by multiple dielectric-barrier-discharge plasma actuation were studied based on PIV.

Through double actuators alternating discharge, the multiple dielectric barrier discharge mode have been proposed and tested. The efficiencies of the plasma actuators in Pulsed-pulsed, Steady-steady, Pulsed-steady and Steady.

Predictable and uniform discharge behaviour is preferable from a flow control standpoint as well as in terms of actuator robustness. Filamentary discharge can lead to irregularities in induced flow and localized stresses on the device, which in turn can lead to premature failure.

Download: Download full-size image; Fig. Plasma generated by. Dielectric-barrier-discharge (DBD) plasma actuators are all-electric devices with no moving parts. They are made of a simple construction, consisting only of a pair of electrodes sandwiching a dielectric sheet.

When AC voltage is applied, air surrounding the upper electrode is ionized, which is attracted towards the charged dielectric surface to form a wall jet. In this paper, a dynamic stall control scheme for vertical-axis wind turbine (VAWT) based on pulsed dielectric-barrier-discharge (DBD) plasma actuation is proposed using computational fluid dynamics (CFD).

The trend of the wind turbine power coefficient with the tip speed ratio is verified, and the numerical simulation can describe the typical dynamic stall process of the H-type VAWT. Roth, J., Sherman, D. & Wilkinson, S. Boundary layer flow control with a one atmosphere uniform glow discharge surface plasma.

In 36th AIAA Aerospace Sciences Meeting, AIAA Paper 98– American Institute of Aeronautics and Astronautics. Liu C and Roth J R Applications of the one atmosphere glow discharge plasma to illumination and aerodynamic boundary layer control APS Bulletin Paper 8P vol 39 [2] Roth J R, Sherman D M and Wilkinson S P Boundary layer flow control with a one atmosphere uniform glow discharge surface plasma Proc.

36th AIAA Aerospace Sciences. The aerodynamic flow acceleration with one atmosphere uniform induced by dielectric-barrier-discharge plasma actuation were studied based on PIV. The flow fields induced by the dielectric barrier discharge with different discharge models and actuation parameters were investigated.

In term of the obtained velocity distributions, a comparative study on the effect of excitation voltages, carrier. Active flow control of surface dielectric barrier discharge (SDBD) plasma is a technology that converts electrical energy into kinetic energy to achieve flow control.

Its main application areas are concentrated in the aviation field. Undoubtedly, few studies have applied it in the field of automobile flow control.

Meanwhile, during high-speed driving, there is a serious airflow separation. Aerodynamic flow acceleration using paraelectric and peristaltic electrohydrodynamic effects of a One Atmosphere Uniform Glow Discharge Plasma.

Physics of Plasmas, Vol. 10, Issue. 5, p. Impact of Flow Control Technologies on Naval On the effects of lateral wall oscillations on a turbulent boundary layer. Experimental Thermal and. Plasma actuators are a type of actuator currently being developed for aerodynamic flow control.

Plasma actuators impart force in a similar way to flows control has drawn considerable attention and been used in boundary layer acceleration, airfoil separation control, forebody separation control, turbine blade separation control, axial compressor stability extension, heat.

A method for removing contaminants from a surface of a workpiece to provide a cleaned workpiece, comprising the steps of generating a steady-state, radio-frequency (RF), uniform glow discharge plasma at a pressure of about one atmosphere between electrodes using an RF power source operating at a frequency of from about Hz to about 30 kHz, and exposing the surface with.

Summary form only given. EHD plasma actuators have proven effective in delaying separation and re-attaching internal or external low speed flows in wind tunnel experiments that utilize drag balances, Pitot tubes, smoke flow visualization, and fluid dynamic modeling programs.

Recent experiments showed that with the additional momentum from a single plasma actuator on its leading edge, the stall. Roth J R, Sherman D M and Wilkinson S P Boundary layer flow control with a one atmosphere uniform glow discharge surface plasma AIAA Meeting (Reno, USA, January ) paper # [2] Shcherbakov Y V, Isanov N S, Baryshev N D, Frolovskij V S and Syssoev V S AIAA Meeting (Reno, USA, January ) paper #.

called it "One Atmosphere Uniform Glow Discharge Plasma" (OAUGDP) [11]. He tested various geometries of the electrodes, Figure His studies were focused on the control of two dimensional boundary layers on a flat plate and found a reduction in resistance when the discharge has the flow direction (co-flow) and an increase in resistance.A technique for generating active species with the One Atmosphere Uniform Glow Discharge Plasma (OAUGDP) has been developed and used to sterilize and increase the surface energy, wettability and wickability of nonwoven fabrics.The majority of industrial plasma processing with glow discharges has been conducted at pressures below 10 torr.

This tends to limit applications to high value workpieces as a result of the high capital cost of vacuum systems and the production constraints of batch processing. It has long been recognized that glow discharge plasmas would play a much larger industrial role if they could be.