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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