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Discharge Influence on Supersonic Boundary Layer


Investigation of Discharge Influence on Boundary Layer in Supersonic Airflow

Tech Area / Field

  • PHY-NGD/Fluid Mechanics and Gas Dynamics/Physics
  • PHY-PLS/Plasma Physics/Physics

8 Project completed

Registration date

Completion date

Senior Project Manager
Tyurin I A

Leading Institute
Moscow State University / Department of Physics, Russia, Moscow


  • Johns Hopkins University, USA, MD, Baltimore

Project summary

The fundamental objective of the proposed Project is:

· investigation of physics of non-equilibrium plasma of the surface microwave discharge in supersonic airflows.

The applied objectives of the Project are:

· working out of various ways of creation of the surface discharge formed on dielectrical bodies (flat plane, wedge, and rectangular, conical and cylindrical antennas) in supersonic flows.

· optimisation of modes of creation of discharges on surface of body streamline by supersonic airflow with aim of the control of characteristics of flow near surface.

The team of the contributors consists of the physicists-researchers from the Physical department of Moscow State University. They are well-known in the scientific community as experts in plasma physics. They are the authors a lot of scientific publications including the scientific monographs and educational textbooks. They have a long-term experience of work in the field of creation and study of physical background of various types of gas discharges and development and application of various methods of diagnostics.

Expected Results and their Application

There are to be achieved the following results:

1. Creation of the surface discharges on dielectric bodies with given geometry in subsonic and supersonic air flows

    · Surface microwave discharge on flat plane, wedge, and rectangular, conical and cylindrical antennas.
    · Surface torch discharge.
    · Surface transversal pulse-periodical discharge.

2. Working out of probe method of measurement of the charged particles concentration under conditions of surface microwave discharge plasma in supersonic flows of air.

3. Investigation of spatial and temporal characteristics of the surface plasma created by discharges of different types in subsonic and supersonic air flows

    · Gas temperature.
    · Vibrational temperature of molecules.
    · Electron concentration.

4. Electrodynamics model of microwave discharge maintained by the surface wave on the dielectric body in a gas flow.

5. Theoretical analysis of a complex of processes taking place in plasma of surface discharges in supersonic airflow.

The commercial value of the project is that the introduction of received results into the aviation can give a large positive effect. The basic results of the project are supposed to be registered as patent applications, and other experimental and theoretical materials will be offered for publication in scientific journals and presented in international scientific conferences.

The scientific value of the project is that the experimental results together with theoretical modeling will allow to describe a physical picture of processes in the discharges in supersonic flows of gas.


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