Suscripción a Biblioteca: Guest
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Publicado 4 números por año

ISSN Imprimir: 1093-3611

ISSN En Línea: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

Indexed in

MODELLING OF THE HEAT TRANSFER DURING OXYGEN ATOMS RECOMBINATION ON METALLIC SURFACES IN A PLASMA REACTOR

Volumen 1, Edición 4, 1997, pp. 525-533
DOI: 10.1615/HighTempMatProc.v1.i4.100
Get accessGet access

SINOPSIS

Space shuttle overheating during the re-entry phase, due to catalytic oxygen recombination on the thermal protection system, is a problem of practical and theoretical interest. The energy transfer is characterised by the product of the accommodation and the recombination coefficients. Previous measurements of recombination coefficient "gamma" on the metallic samples allowed the establishment of a catalycity scale. The purpose of this work is the modelling of the recombination of oxygen atoms and transfer of the energy to a metallic surface at stagnation point configuration by using a fluid dynamics code. The flow is described by a system of conservation (momentum, species and energy) equations. The necessary boundary conditions were provided by a model for a reactive flow-surface interaction. Under conditions similar to the experiment the field velocity, temperature and the fluxes of atomic and molecular oxygen in the reactor have been obtained. Assuming surface recombination of oxygen atoms only, the "gamma" coefficient was deduced from the ratios of atomic and molecular fluxes to the surface. The comparison of calculated values of "gamma" with the experimental ones leads to the determination of the surface recombination rate constant.

Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones Precios y Políticas de Suscripcione Begell House Contáctenos Language English 中文 Русский Português German French Spain