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Microwave Discharge with Sparkless Laser Initiation in Supersonic Flow and the Effect of Its Trace on Body Aerodynamics.

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Title: Microwave Discharge with Sparkless Laser Initiation in Supersonic Flow and the Effect of Its Trace on Body Aerodynamics.
Authors: Abakarova, M. A.1 (AUTHOR), Dobrov, Yu. V.1 (AUTHOR), Kravchenko, D. S.1 (AUTHOR), Lashkov, V. A.1 (AUTHOR), Mashek, I. Ch.1 (AUTHOR), Renev, M. E.1 (AUTHOR) renevme@mail.ru, Khoronzhuk, R. S.1 (AUTHOR)
Source: Fluid Dynamics. Dec2025, Vol. 60 Issue 7, p1-25. 25p.
Subjects: Supersonic flow, Shock waves, Laser industry, Gas dynamics, High-frequency discharges, Pressure drop (Fluid dynamics), Aerodynamics
Abstract: The microwave discharge with sparkless laser initiation is studied experimentally in the medium without external flows and under the conditions of supersonic flow at the Mach number 1.44. It is found that the properties of the active phase of the microwave discharge when applying initiation in supersonic flow differ only slightly from the case without external flows. Shadowgraph images of shock waves in front of a model cylinder in supersonic flow with the energy deposition by the discharge under consideration are obtained. Numerical simulations of the gas-dynamic processes during discharge combustion and in its wake are carried out, and the interaction of the heated gas region with the bow shock wave front is investigated. The possibility of producing a modified shock wave structure in front of the model by 100 μs with a 30–60% reduction in the stagnation pressure using an initiated microwave discharge of short duration 0.5–2 μs is demonstrated. [ABSTRACT FROM AUTHOR]
Copyright of Fluid Dynamics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 190958012
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Microwave Discharge with Sparkless Laser Initiation in Supersonic Flow and the Effect of Its Trace on Body Aerodynamics.
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  Data: <searchLink fieldCode="JN" term="%22Fluid+Dynamics%22">Fluid Dynamics</searchLink>. Dec2025, Vol. 60 Issue 7, p1-25. 25p.
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  Data: <searchLink fieldCode="DE" term="%22Supersonic+flow%22">Supersonic flow</searchLink><br /><searchLink fieldCode="DE" term="%22Shock+waves%22">Shock waves</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+industry%22">Laser industry</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+dynamics%22">Gas dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22High-frequency+discharges%22">High-frequency discharges</searchLink><br /><searchLink fieldCode="DE" term="%22Pressure+drop+%28Fluid+dynamics%29%22">Pressure drop (Fluid dynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Aerodynamics%22">Aerodynamics</searchLink>
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  Data: The microwave discharge with sparkless laser initiation is studied experimentally in the medium without external flows and under the conditions of supersonic flow at the Mach number 1.44. It is found that the properties of the active phase of the microwave discharge when applying initiation in supersonic flow differ only slightly from the case without external flows. Shadowgraph images of shock waves in front of a model cylinder in supersonic flow with the energy deposition by the discharge under consideration are obtained. Numerical simulations of the gas-dynamic processes during discharge combustion and in its wake are carried out, and the interaction of the heated gas region with the bow shock wave front is investigated. The possibility of producing a modified shock wave structure in front of the model by 100 μs with a 30–60% reduction in the stagnation pressure using an initiated microwave discharge of short duration 0.5–2 μs is demonstrated. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Fluid Dynamics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Laser industry
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      – SubjectFull: Gas dynamics
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      – SubjectFull: High-frequency discharges
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      – SubjectFull: Pressure drop (Fluid dynamics)
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              Text: Dec2025
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