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International Journal of Energetic Materials and Chemical Propulsion

Publicou 6 edições por ano

ISSN Imprimir: 2150-766X

ISSN On-line: 2150-7678

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: 0.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.7 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: 0.00016 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: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

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OSCILLATING AND CELLULAR STRUCTURES ON THE BURNING SURFACE OF SOLID HOMOGENEOUS ENERGETIC MATERIALS

Volume 18, Edição 4, 2019, pp. 287-302
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2019027692
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RESUMO

Combustion of a double-base solid nitroglycerin-based (NB) propellant at a pressure of p = 1 bar is studied experimentally. It is shown that combustion occurs in the cellular-oscillating mode: combustion occurs in the form of separate cells that periodically appear on the burning surface, move along it, and disappear. It is shown that in this mode, a carbonized skeleton is formed on the burning surface, consisting of products of incomplete decomposition of propellant. This skeleton is associated with the burning surface and plays an important role in maintaining the cellular-oscillating mode of combustion of the double-base propellant. To explain the experimental data, a combustion model with a curved burning surface is considered. It is shown that the burning rate depends on the curvature of the burning surface: with increasing curvature of the burning surface, the local burning rate decreases and combustion becomes impossible if the nondimensional radius of curvature (Michelson-Markstein criterion) of the burning surface becomes less than some critical value. The calculated critical value of the Michelson-Markstein criterion is in good agreement with that obtained in experiments. Using the developed model of combustion of solid homogeneous energetic materials (SHEMs) with a curved burning surface, the critical combustion diameter of various SHEMs and the shape of stationary cells on the burning surface are calculated. The critical combustion diameters of various SHEMs calculated in this way are compared with the available experimental data. A good agreement between the theory and experiments was obtained.

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CITADO POR
  1. Marshakov V. N., Krupkin V. G., Rashkovskii S. A., HMX Combustion Mechanism, Russian Journal of Physical Chemistry B, 14, 6, 2020. Crossref

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