Plasma Flow control: Fundamentals, modeling and applications - VKI LS

Date: Monday 21 February 2011 to Thursday 24 February 2011

Location : von Karman Institute for Fluid Dynamics, Rhode-St-Genèse, Belgium
Contact : This email address is being protected from spambots. You need JavaScript enabled to view it., phone: + 32 2 359 96 04, fax: +32 2 359 96 00



From February 21 to 24, 2011

von Karman Institute, Rhode-St-Genèse, Belgium

ESA logo The ESAC Communication & Education Office Communication and Knowledge Department of the European Space Agency will support the enrollment of 2 undergraduate students in this Lecture Series (on a first-come first-served basis).  Please specify that you would like to obtain such a fellowship on your registration form. To apply, please visit the ESA student sponsorship.


Advances in aero-thermodynamics, aero-elasticity and aero-acoustics largely depend on the understanding of the flow structures, and the ability to control them. The first lecture will review the various approaches that are being followed for plasma flow control. The fundamental interaction mechanisms will be presented together with the challenges associated to their implementation depending on the flow regime. A presentation on the mechanisms for the generation of momentum transfer using offset dielectric barrier discharges will follow, focusing on the physics of the breakdown formation. The next lecture will address phenomenological models that can be used in conjunction with CFD codes, from simple algebraic equations to complex set of partial difference equations. The first day will be concluded with the use of DBD actuators in various applications for internal and external flow control, over a range of Mach numbers from 0.1 to 3.5, in a wide static pressure range from 0.1 to 9 bar.

The second day starts with the analysis of the governing equations of glow discharges in supersonic and hypersonic flows. The estimations of characteristics time scales in high speed flow highlight the influence of gas motion on the electro-dynamic structure. The second lecture will demonstrate successful plasma applications in the lab at high speed, for drag reduction, plasma-induced generation of shock waves, and artificial flow separation. The third lecture will describe recent experimental and computational research in identifying and modeling the gasdynamic and thermochemical processes of the plasmoid generation with micro-wave and laser discharge.

The third day begins with the description of the physics of the flow separation control on airfoils with the nanosecond plasma discharge. The effectiveness is demonstrated experimentally up to Mach number 0.75. Kinetic models in nonequilibrium plasma are discussed as well as mechanisms of shear layer instability, optimal location and frequency of actuation. The second lecture discusses the use of a drift-diffusion model with the Poisson equation for plasmadyanmics to simulate direct current discharge and DBD. The final lecture of the day reviews the main requirements for airplane aerodynamics flow control. Applications of surface and arc plasmas for civil aircraft will be discussed (wing separations, wing tip vortex, boundary layer delay and fixing, buffeting, jet exhaust noise ...) together with results from the EU funded program PlasmAero.

The final day will be initiated with the formulation of a consistent set of governing equations able to describe the physical phenomenology comprising the flow field of ionized gas mixtures and the presence of the electromagnetic field. The following lecture will outline the basics of non-intrusive techniques (LIF, DLAS MWI, ...) and their application during a specific test campaign with respect to the control of ionized hypersonic argon flow in the DLR arc heated facility L2K. The last lecture will consider multi-temperature drift-diffusion model and simplified quasi-neutral model of glow discharge for gas discharges in rarefied hypersonic gas flows.

The lecture series will be concluded by a workshop dedicated to point out the perspectives in terms of upstream research and integration into industrial applications. The directors of this Lecture Series are Dr. Yacine Babou and Dr. Guillermo Paniagua from the von Karman Institute.


Monday 21 February 2011

  • 08:45    Registration
  • 09:15    Welcome, introductory remarks
  • 09:30    Keynote
    R. Miles, Princeton University, USA
  • 10:45    Limitations and potential of flow control with dielectric barrier discharges
    R. Miles
  • 14:00    Phenomenological models for plasma flow control
    G. Huang, Wright State University, USA
  • 15:45    Dielectric barrier discharge plasma actuators
    T. Corke, University of Notre Dame, USA
  • 17:00    Reception

Tuesday 22 February 2011

  • 09:00    Governing equations of gas discharge processes in gas flows
    S. Surzhikov, Russian Academy of Sciences, Russia
  • 10:45    Plasma-based control of high-speed airflow
    S. Leonov, Russian Academy of Sciences, Russia
  • 14:00    High speed flow control using microwave and laser discharge
    D. Knight, Rutgers, USA & Y. Kolesnichenko, National Academy of Sciences of Ukraine, Ukraine
  • 15:45    Poster sessions
    Lecturers and all participants

Wednesday 23 February 2011

  • 09:00    Physics of nanosecond pulsed plasma actuators
    A. Starikovski, Drexel University, USA
  • 10:45    Computational simulation of direct current and dielectric barrier discharges
    G. Huang
  • 14:00    Aerodynamic improvement. Examples of applications
    D. Caruana, ONERA - CERT, France
  • 15:45    Lab demo and visit to labs
    Lecturers and all participants

Thursday 24 February 2011

  • 09:00    Theoretical considerations regarding fluid dynamics and electromagnetic fields
    D. Giordano, ESA, The Netherlands
  • 10:45    Measurement techniques for plasma flow control in ionized hypersonic flows
    A. Guelhan, DLR, Germany
  • 14:00    The drift-diffusion and quasi-neutral models of gas discharges for flow control problems
    S. Surzhikov
  • 15:45    Workshop - Round table: Future proposals
    Lecturers and all participants
  • 17:00    End of Lecture Series

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From 21.02.2011 to 24.02.2011


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