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Modeling of the Plasma Flow in Coaxial Channels of Different Diameters.

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Title: Modeling of the Plasma Flow in Coaxial Channels of Different Diameters.
Authors: Skornyakov, V. M.1 (AUTHOR) skornyakov@bmstu.ru, Ladygin, S. A.2 (AUTHOR), Telekh, V. D.1 (AUTHOR)
Source: Technical Physics. Jun2025, Vol. 70 Issue 6, p173-179. 7p.
Subjects: Plasma flow, Mathematical models, Computer simulation, Velocity distribution (Statistical mechanics)
Abstract: Mathematical modeling of a plasma flow in coaxial channels with different outer electrode diameters is considered. A numerical model for determining the distribution of density, velocity, and magnetic fields in a channel is proposed based on the system of differential equations describing the mass, momentum, and energy conservation laws. Computational experiments show that depending on the outer electrode diameter, the location of the region of elevated density and velocity field changes, leading to variation of the time of emergence of the main mass of the plasma from the channel, as well as its value and velocity. For complex assessment of these parameters, the plasma momentum in the output cross section is calculated. The performed analysis demonstrates the existence of an optimal value of the outer electrode diameter, for which the maximal magnitude of the momentum is achieved. [ABSTRACT FROM AUTHOR]
Copyright of Technical Physics 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.)
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  Data: Modeling of the Plasma Flow in Coaxial Channels of Different Diameters.
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  Data: <searchLink fieldCode="JN" term="%22Technical+Physics%22">Technical Physics</searchLink>. Jun2025, Vol. 70 Issue 6, p173-179. 7p.
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  Data: Mathematical modeling of a plasma flow in coaxial channels with different outer electrode diameters is considered. A numerical model for determining the distribution of density, velocity, and magnetic fields in a channel is proposed based on the system of differential equations describing the mass, momentum, and energy conservation laws. Computational experiments show that depending on the outer electrode diameter, the location of the region of elevated density and velocity field changes, leading to variation of the time of emergence of the main mass of the plasma from the channel, as well as its value and velocity. For complex assessment of these parameters, the plasma momentum in the output cross section is calculated. The performed analysis demonstrates the existence of an optimal value of the outer electrode diameter, for which the maximal magnitude of the momentum is achieved. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Technical Physics 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: Computer simulation
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              Text: Jun2025
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