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high-frequency discharge plasma-on. It is found that the pressure gradient was
about zero near the vortex axis at plasma-on. So, there is a stationary immovable
gas inside the central vortex region at plasma-on. The obtained results can be
used for flow control, lift control, advanced mixing, plasma aerodynamics, and
plasma-assisted combustion.
4. Aerodynamic properties of the longitudinal vortex plasmoid were studied. This
longitudinal vortex plasmoid can move against a wind as can do a real BL. The
typical velocity of the stable longitudinal vortex plasmoid is about V p 30-
40 m/s, and it does not depend on the oncoming flow velocity. The aerodynamic
drag of this vortex longitudinal vortex plasmoid should be very small (as a result
of the symmetrical streamlines around it). It is well known that BL also has a very
small drag. It can be important for aerodynamic applications and clarification of
the unusual aerodynamic properties of a real BL.
5. We confirmed results of Kapitsa measurements of MW plasmoid UV radiation
and discovered that the longitudinal vortex plasmoid can emit intensive UV
radiation.
6. Measurements of the power budget in the longitudinal vortex plasmoid were
made. An extra power release proved to be about 400% as measured inside the
longitudinal vortex plasmoid. It can be connected with complex processes of
cluster particle creation and destruction in vortex flows.
7. The plasma-gas dynamic power converter was created and studied in this work
for the first time. We plan to study its physics in detail in future experiments.
This study should help us to clarify the nature of the power supply of BL energy.
In conclusion, one can say the model of the plasma vortex created with the help
of coupled-capacity high-frequency discharge proved to be fruitful for modeling of
many BL features and understanding its physics.
Acknowledgments The author acknowledges I. Moralev for help in carrying out the experiments
and Dr. V. Bychkov and Dr. A. Nikitin for fruitful discussions of this work.
References
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