Analysis of Dynamic Processes Occurring during Generation of Plasmoid Formations in a Supersonic Flow

Znamenskaya, I. A.; Naumov, D. S.; Sysoev, N. N.; Chernikov, V. A.

doi:10.1134/s1063784219060252

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…We processed shadowgraph image sequence with bow-shock wave near the model in the flow with M ≈ 2. The experiment description is given in [19]. The image processing algorithm includes brightness averaging along a given band (Fig.…”

Section: Computer Vision and Machine Learningmentioning

confidence: 99%

Animations Analysis in Experimental Fluid Dynamics

Znamenskaya¹,

Sysoev²,

Doroshchenko³

2021

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Section: Computer Vision and Machine Learningmentioning

confidence: 99%

Animations Analysis in Experimental Fluid Dynamics

Znamenskaya¹,

Sysoev²,

Doroshchenko³

2021

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“…The discharge plasma effect on supersonic flow was investigated experimentally in [25] taking into account plasma, electric, and magnetic effects. In experiments, the possibility of using plasma formations (plasmoids) to change the supersonic flow near the model has been investigated in [26]. Complicated shock structures are formed in the processes of the energy sources-shock layers interaction including formation of triple-shock configurations [27,28].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of Shock Structure and Frontal Drag Force in a Supersonic Flow Past a Blunt Cone under the Action of Plasma Formation

Znamenskaya

Chernikov

Azarova

2021

Fluids

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The paper is devoted to the experimental and CFD investigation of a plasma formation impact on the supersonic flow over a body “blunt cone-cylinder”. In the experiments, a series of schlieren pictures of bow shock wave–blast waves non-stationary interaction was obtained with the use of high speed shadowgraphy. The accompanying calculations are based on the system of Euler equations. The freestream Mach number is 3.1. The plasmoid is modeled by the instantaneous release of energy into a bounded volume of gas, increasing the pressure in the volume. The research of the dynamics of a shock wave structure caused by the bow shock wave and blast flow interaction has been conducted. The significant value of energy released to a supersonic flow (500J) allowed constructing a diagram of the generation and dynamics of the resulting shock waves and contact discontinuities, as well as obtaining a significant drop in the drag force and stagnation pressure (up to 80%). The dynamics of a low density and high gas temperature zone, which becomes the main factor reducing the frontal body drag force, was researched. The dynamics of the front surface drag forces have been studied for different values of the plasmoid energy as well. Qualitative agreement of the numerical flow patterns with the experiment ones has been obtained.

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Disruption of colliding liquid droplets with different surface geometries

Piskunov

Shlegel

2019

Powder Technology

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Analysis of Dynamic Processes Occurring during Generation of Plasmoid Formations in a Supersonic Flow

Cited by 3 publications

References 10 publications

Animations Analysis in Experimental Fluid Dynamics

Animations Analysis in Experimental Fluid Dynamics

Dynamics of Shock Structure and Frontal Drag Force in a Supersonic Flow Past a Blunt Cone under the Action of Plasma Formation

Disruption of colliding liquid droplets with different surface geometries

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