Effect of constant collision mean free time on the boundary layer of the active collisional warm plasma

Abstract The plasma boundary layer is analyzed for a plasma in contact with a conducting plain surface where the ion temperature is comparable with the electron temperature and the plasma pressure is sufficiently high. The variations of electrical potential from the plasma-presheath boundary to the...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Mansour Khoram, S. Farhad Masoudi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dd5acac28366412c9c38a794795124ac
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:dd5acac28366412c9c38a794795124ac
record_format	dspace
spelling	oai:doaj.org-article:dd5acac28366412c9c38a794795124ac2021-12-02T17:23:47ZEffect of constant collision mean free time on the boundary layer of the active collisional warm plasma10.1038/s41598-021-97750-12045-2322https://doaj.org/article/dd5acac28366412c9c38a794795124ac2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97750-1https://doaj.org/toc/2045-2322Abstract The plasma boundary layer is analyzed for a plasma in contact with a conducting plain surface where the ion temperature is comparable with the electron temperature and the plasma pressure is sufficiently high. The variations of electrical potential from the plasma-presheath boundary to the wall is studied using the fluidal formalism of plasma in three approaches; plasma and sheath asymptotic solutions and full solution. In the full solution approach, fluidal equations lead to a singularity when the ion velocity reaches the ion thermal speed. It is shown that removing the singularity causes a well-defined eigenvalue problem and leads to smooth solutions for the model equations. Some of the applicable aspects such as the floating velocity and density of ions, the floating electrical potential and an estimation of the floating thickness of the boundary layer are obtained. The dependency of these quantities on the ionization degree, the ion temperature and ion-neutral collision is examined too.Mansour KhoramS. Farhad MasoudiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mansour Khoram S. Farhad Masoudi Effect of constant collision mean free time on the boundary layer of the active collisional warm plasma
description	Abstract The plasma boundary layer is analyzed for a plasma in contact with a conducting plain surface where the ion temperature is comparable with the electron temperature and the plasma pressure is sufficiently high. The variations of electrical potential from the plasma-presheath boundary to the wall is studied using the fluidal formalism of plasma in three approaches; plasma and sheath asymptotic solutions and full solution. In the full solution approach, fluidal equations lead to a singularity when the ion velocity reaches the ion thermal speed. It is shown that removing the singularity causes a well-defined eigenvalue problem and leads to smooth solutions for the model equations. Some of the applicable aspects such as the floating velocity and density of ions, the floating electrical potential and an estimation of the floating thickness of the boundary layer are obtained. The dependency of these quantities on the ionization degree, the ion temperature and ion-neutral collision is examined too.
format	article
author	Mansour Khoram S. Farhad Masoudi
author_facet	Mansour Khoram S. Farhad Masoudi
author_sort	Mansour Khoram
title	Effect of constant collision mean free time on the boundary layer of the active collisional warm plasma
title_short	Effect of constant collision mean free time on the boundary layer of the active collisional warm plasma
title_full	Effect of constant collision mean free time on the boundary layer of the active collisional warm plasma
title_fullStr	Effect of constant collision mean free time on the boundary layer of the active collisional warm plasma
title_full_unstemmed	Effect of constant collision mean free time on the boundary layer of the active collisional warm plasma
title_sort	effect of constant collision mean free time on the boundary layer of the active collisional warm plasma
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dd5acac28366412c9c38a794795124ac
work_keys_str_mv	AT mansourkhoram effectofconstantcollisionmeanfreetimeontheboundarylayeroftheactivecollisionalwarmplasma AT sfarhadmasoudi effectofconstantcollisionmeanfreetimeontheboundarylayeroftheactivecollisionalwarmplasma
_version_	1718380999038992384

Effect of constant collision mean free time on the boundary layer of the active collisional warm plasma

Ejemplares similares