dor_id: 4128520

506.#.#.a: Público

590.#.#.d: Cada artículo es evaluado mediante una revisión ciega única. Los revisores son externos nacionales e internacionales.

510.0.#.a: Web of Science (WoS), Directory of Open Access Journals (DOAJ), Sistema Regional de Información en Línea para Revistas Científicas de América Latina, el Caribe, España y Portugal (Latindex), Scientific Electronic Library Online (SciELO), Consejo Nacional de Ciencia y Tecnología (CONACyT), La Red de Revistas Científicas de América Latina y el Caribe, España y Portugal (Redalyc)

561.#.#.u: https://www.fciencias.unam.mx/

650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: https://rmf.smf.mx/ojs/rmf/index

351.#.#.b: Revista Mexicana de Física

351.#.#.a: Artículos

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

590.#.#.c: Open Journal Systems (OJS)

270.#.#.d: MX

270.1.#.d: México

590.#.#.b: Concentrador

883.#.#.u: http://www.revistas.unam.mx/front/

883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural, UNAM

883.#.#.1: https://www.publicaciones.unam.mx/

883.#.#.q: Dirección General de Publicaciones y Fomento Editorial, UNAM

850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: https://rmf.smf.mx/ojs/index.php/rmf/article/view/5393/5721

100.1.#.a: Gómez Samaniego, C.; Nieto Pérez, M.; Ramos López, G.

524.#.#.a: Gómez Samaniego, C., et al. (2021). Simulation of the inner electrode geometry effect on the rundown phase characteristics of a coaxial plasma accelerator.. Revista Mexicana de Física; Vol. 67 No. 1, 2021; 162-172. Recuperado de https://repositorio.unam.mx/contenidos/4128520

245.1.0.a: Simulation of the inner electrode geometry effect on the rundown phase characteristics of a coaxial plasma accelerator.

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2021

264.#.1.c: 2021-01-07

653.#.#.a: Plasma simulation; plasma accelerators; snowplow-model.

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2021-01-07, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico rmf@ciencias.unam.mx

884.#.#.k: https://rmf.smf.mx/ojs/index.php/rmf/article/view/5393

001.#.#.#: rmf.oai:ojs2.rmf.smf.mx:article/5393

041.#.7.h: eng

520.3.#.a: A 2D computational model, incorporating the Snowplow approximation in the mass balance, is used to simulate the acceleration of an annular current sheath along two coaxial electrodes, with the inner one having either cylindrical or conical shape. The circuit, mass and momentum equations are simultaneously solved in 2D (r, z) considering initial breakdown along the insulator surface, ideal gas mass accretion by the current sheath (snowplow model) and distributed inductance along a coaxial transmission line short-circuited by the current sheath. Plasma density and electron temperature in the current sheath are estimated using standard planar shock theory. Numerical integration of the model’s equations for a given electrode geometry yields the temporal evolution of the current sheath parameters during the axial acceleration phase. In order to see the effect of the inner electrode shape on sheath parameters (i.e. transit time, kinetic energy, total mass, shape, etc.) and/or circuit properties (i.e. circuit inductance, voltage and current evolution, etc.), the portion of the inner electrode beyond the insulator was given a conical shape. By changing the cone slant in a range between ±5°, it was found that the current driven on the plasma sheath varies nonlinearly with the angle. The divergent (positive angle) electrode gives the sheath the highest kinetic energy, being twice the value corresponding to that of the straight inner electrode case, and the transit time is reduced from 1.34 to 1.20 µs. The estimates of plasma density and electron temperature indicate that the achievable ion densities are on the order of 4x1022 m-3, which corresponds to 30 % ionization, and typical temperatures at the end of the rundown phase are on the order of 8 eV. These values are comparable with those measured in experimental devices. The development of this tool will enable us to benchmark its results against an experimental installation currently close to being operational, and a future follow-up paper will be devoted to the comparison between the prediction of the rundown phase behavior and experimental results utilizing conical electrodes.

773.1.#.t: Revista Mexicana de Física; Vol. 67 No. 1 (2021); 162-172

773.1.#.o: https://rmf.smf.mx/ojs/rmf/index

022.#.#.a: ISSN electrónico: 2683-2224; ISSN impreso: 0035-001X

310.#.#.a: Bimestral

300.#.#.a: Páginas: 162-172

264.#.1.b: Facultad de Ciencias, UNAM

758.#.#.1: https://rmf.smf.mx/ojs/rmf/index

doi: https://doi.org/10.31349/RevMexFis.67.162

handle: 28531a2b92f57a64

harvesting_date: 2022-08-17 16:00:00.0

856.#.0.q: application/pdf

file_creation_date: 2020-12-09 19:09:57.0

file_name: ca6b372eab02a45d60097fbf123e1546d8038d7f6a04f1d89fc9d9b1e8c16541.pdf

file_pages_number: 11

file_format_version: application/pdf; version=1.2

file_size: 2478188

last_modified: 2022-11-29 12:00:00

license_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es

license_type: by-nc-nd

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