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

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 sh...

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Autores principales:	Irina Znamenskaya, Vladimir Chernikov, Olga Azarova
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	supersonic flow bow shock wave plasmoid blast shock wave shock-wave structure drag force reduction Thermodynamics QC310.15-319 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/c628cf981bd64364b8505c9a29f3c35a
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id	oai:doaj.org-article:c628cf981bd64364b8505c9a29f3c35a
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spelling	oai:doaj.org-article:c628cf981bd64364b8505c9a29f3c35a2021-11-25T17:31:39ZDynamics of Shock Structure and Frontal Drag Force in a Supersonic Flow Past a Blunt Cone under the Action of Plasma Formation10.3390/fluids61103992311-5521https://doaj.org/article/c628cf981bd64364b8505c9a29f3c35a2021-11-01T00:00:00Zhttps://www.mdpi.com/2311-5521/6/11/399https://doaj.org/toc/2311-5521The 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.Irina ZnamenskayaVladimir ChernikovOlga AzarovaMDPI AGarticlesupersonic flowbow shock waveplasmoidblast shock waveshock-wave structuredrag force reductionThermodynamicsQC310.15-319Descriptive and experimental mechanicsQC120-168.85ENFluids, Vol 6, Iss 399, p 399 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	supersonic flow bow shock wave plasmoid blast shock wave shock-wave structure drag force reduction Thermodynamics QC310.15-319 Descriptive and experimental mechanics QC120-168.85
spellingShingle	supersonic flow bow shock wave plasmoid blast shock wave shock-wave structure drag force reduction Thermodynamics QC310.15-319 Descriptive and experimental mechanics QC120-168.85 Irina Znamenskaya Vladimir Chernikov Olga Azarova Dynamics of Shock Structure and Frontal Drag Force in a Supersonic Flow Past a Blunt Cone under the Action of Plasma Formation
description	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.
format	article
author	Irina Znamenskaya Vladimir Chernikov Olga Azarova
author_facet	Irina Znamenskaya Vladimir Chernikov Olga Azarova
author_sort	Irina Znamenskaya
title	Dynamics of Shock Structure and Frontal Drag Force in a Supersonic Flow Past a Blunt Cone under the Action of Plasma Formation
title_short	Dynamics of Shock Structure and Frontal Drag Force in a Supersonic Flow Past a Blunt Cone under the Action of Plasma Formation
title_full	Dynamics of Shock Structure and Frontal Drag Force in a Supersonic Flow Past a Blunt Cone under the Action of Plasma Formation
title_fullStr	Dynamics of Shock Structure and Frontal Drag Force in a Supersonic Flow Past a Blunt Cone under the Action of Plasma Formation
title_full_unstemmed	Dynamics of Shock Structure and Frontal Drag Force in a Supersonic Flow Past a Blunt Cone under the Action of Plasma Formation
title_sort	dynamics of shock structure and frontal drag force in a supersonic flow past a blunt cone under the action of plasma formation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c628cf981bd64364b8505c9a29f3c35a
work_keys_str_mv	AT irinaznamenskaya dynamicsofshockstructureandfrontaldragforceinasupersonicflowpastabluntconeundertheactionofplasmaformation AT vladimirchernikov dynamicsofshockstructureandfrontaldragforceinasupersonicflowpastabluntconeundertheactionofplasmaformation AT olgaazarova dynamicsofshockstructureandfrontaldragforceinasupersonicflowpastabluntconeundertheactionofplasmaformation
_version_	1718412252668755968

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

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