Effect of gasdynamic processes on structure and threshold of laser spark initiated microwave discharge

Афанасьев, С. А.; Brovkin, Vadim; Kolesnichenko, Yu. F.; Mashek, I. Ch.

doi:10.1134/s1063785011080025

Cited by 9 publications

(3 citation statements)

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“…In [94], S. Afanas'ev et al conducted experiments to investigate the effect of gasdynamic processes on the characteristics and initiation threshold of a laser spark (LS)-initiated MW discharge in the open air (see Figures 24 and 25). Here, the MW beam propagates from left to right, and the laser beam propagates from top to bottom.…”

Section: Flow Control Using Combined Physical Phenomenamentioning

confidence: 99%

The Use of Spatially Multi-Component Plasma Structures and Combined Energy Deposition for High-Speed Flow Control: A Selective Review

Azarova,

Kravchenko

2024

Energies

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This review examines studies aimed at the organization of energy (non-mechanical) control of high-speed flow/flight using spatially multi-component plasma structures and combined energy deposition. The review covers selected works on the experimental acquisition and numerical modeling of multi-component plasma structures and the use of sets of actuators based on plasma of such a spatial type for the purposes of control of shock wave/bow shock wave–energy source interaction, as well as control of shock wave–boundary layer interaction. A series of works on repetitive multiple laser pulse plasma structures is also analyzed from the point of view of examining shock wave/bow shock wave–boundary layer interaction. Self-sustained theoretical models for laser dual-pulse, multi-mode laser pulses, and self-sustained glow discharge are also considered. Separate sections are devoted to high-speed flow control using combined physical phenomena and numerical prediction of flow control possibilities using thermal longitudinally layered plasma structures. The wide possibilities for organization and applying spatially multi-component structured plasma for the purposes of high-speed flow control are demonstrated.

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Section: Flow Control Using Combined Physical Phenomenamentioning

confidence: 99%

The Use of Spatially Multi-Component Plasma Structures and Combined Energy Deposition for High-Speed Flow Control: A Selective Review

Azarova,

Kravchenko

2024

Energies

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“…The results within the framework of organizing control of supersonic flows are also considered: PGD, EGD and MHD impact for the purposes of the BSW control, and an energy supply to one side of the wedge due to a spark discharge ("plasma wedge") which is an example of coupling the mechanical and energy approaches to flow control. S. Afanas'ev et al conducted experiments in [97] to investigate the effect of gas-dynamic processes on the characteristics and initiation threshold of a laser spark (LS) initiated MW discharge in the open air (see Figures 24 and 25).…”

Section: Flow Control Using Combined Physical Phenomenamentioning

confidence: 99%

The Use of Spatially Multi-Component Plasma Structures and Combined Energy Deposition for High-Speed Flow Control. A Selective Review

Azarova,

Kravchenko

2023

Preprint

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The Review examines studies aimed at the organization of energy (non-mechanical) control of high-speed flow/flight using spatially multi-component plasma structures and combined energy deposition. The Review covers selected works on experimental obtaining and numerical modeling multi-component plasma structures and use of sets of actuators based on the plasma of such a spatially type for the purposes of control of shock wave/bow shock wave – energy source interaction, as well as control of shock wave – boundary layer interaction. A series of works on repetitive multiple laser pulse plasma structures is also analyzed from the point of view of examining shock wave/bow shock wave boundary layer interaction. Self-sustained theoretical models for laser dual-pulse, multi-mode laser pulses and self-sustained glow discharge are also considered. Separate sections are devoted to high-speed flow control using combined physical phenomena and numerical prediction of flow control possibilities using thermal longitudinally layered plasma structures. The wide possibilities for organization and applying spatially multi-component structured plasma for the purposes of high-speed flow control are demonstrated.

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“…Combining energy sources is a new direction in the area of the energy influenced flow control technologies. The effect of combining energy sources was pointed out experimentally for the coupled MW-laser energy supply in [11]. Numerical model of a combined energy deposition was suggested and examined in [12,13].…”

Section: Introductionmentioning

confidence: 99%

Supersonic Flow Control Using Combined Energy Deposition

Azarova

2015

Aerospace

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Drag force control via energy deposition in an oncoming flow is a wide area of interest in aerospace sciences. Recently, investigations on the effect of combining energy sources have been conducted. The possibility of coupling microwave (MW) discharges or MW and laser energy deposition is discussed. In the present work, the flow details accompanying the interaction of a combined energy release and an aerodynamic body in a supersonic flow are considered numerically on the base of the Euler equations. Comparison with non-combined energy deposition is analyzed. The effect of introducing the internal part to the energy release on the drag force reduction is examined. The flows for blunt cylinder, hemisphere-cylinder and pointed body are considered for a wide class of the combined energy source characteristics. Freestream Mach number is varied from 1.89 to 3.45. Complicated unsteady vortex structures caused by the Richtmyer-Meshkov instabilities are shown to be the reason for the reduction in drag. The unsteady double vortex mechanism of the frontal drag force reduction and mechanism of the constantly acting vortices at the steady flow are described. Suppression of shear layer instability and large scaled flow pulsations as the result of the combined energy release effect is established. Complex conservative difference schemes are used in the simulations.

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Effect of gasdynamic processes on structure and threshold of laser spark initiated microwave discharge

Cited by 9 publications

References 0 publications

The Use of Spatially Multi-Component Plasma Structures and Combined Energy Deposition for High-Speed Flow Control: A Selective Review

The Use of Spatially Multi-Component Plasma Structures and Combined Energy Deposition for High-Speed Flow Control: A Selective Review

The Use of Spatially Multi-Component Plasma Structures and Combined Energy Deposition for High-Speed Flow Control. A Selective Review

Supersonic Flow Control Using Combined Energy Deposition

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