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International Journal of Energetic Materials and Chemical Propulsion

Publicado 6 números por año

ISSN Imprimir: 2150-766X

ISSN En Línea: 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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THEORETICAL MODELING OF ELECTRICALLY OPERATED AMMONIUM NITRATE PROPELLANT COMBUSTION

Volumen 18, Edición 1, 2019, pp. 67-89
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2019027964
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SINOPSIS

Certain propellants exhibit combustion zone properties that allow burn rate manipulation by application of a transverse electric field, perpendicular to the axis of flame propagation. In the configuration of interest, the solid propellant is dielectric, but its melt layer underneath the gaseous flame region is electrically conductive. The applied electric field imparts ohmic heating to the subsurface region adjacent to the flame. The advantages of ammonium nitrate (AN) propellants for this method of burn-rate control have been known for some time; a clear effect, on the order of 100% of normal burn-rate amplification, could be possible using moderate voltages. Whereas AN is dielectric in all its known solid phase variants, its melt phase is electrically conductive. The objective of this study is to provide a theory for this mode of electrically enhanced combustion. A quasi one-dimensional model of the solid/melt/gas combustion zone is derived at steady state. The resulting two-point boundary value formulation for the melt layer is based on variable electrical conductivity as a function of temperature. This leads to a unique Sturm-Liouville formulation for which eigenvalues and associated eigenfunctions are solved. The two parameters of physical significance are the Péclét number and the eigenvalue. The analysis herein offers physical insight into this electrically augmented combustion process at steady state, which explains the dependence of burn rate and apparent melt layer resistance upon the applied electrical voltage. These functional dependences are verified by correlating the available experimental results.

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CITADO POR
  1. Bao Lirong, Wang Hui, Wang Zhiwen, Xie Haiming, Xiang Shujie, Zhang Xiaojun, Zhang Wei, Huang Yinsheng, Shen Ruiqi, Ye Yinghua, Controllable ignition, combustion and extinguishment characteristics of HAN-based solid propellant stimulated by electric energy, Combustion and Flame, 236, 2022. Crossref

  2. Gobin Bradley, Harvey Nicholas, Young Greg, Use of Polymer Electrolytes for Electrically Controlled Energetic Materials, AIAA SCITECH 2022 Forum, 2022. Crossref

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