Suscripción a Biblioteca: Guest
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

Indexed in

HIGH-FIDELITY PREDICTIONS OF THE EFFECTS OF PRESSURE AND PARTICLE SIZE ON AMMONIUM PERCHLORATE/HYDROXY- TERMINATED-POLYBUTADIENE PROPELLANTS

Volumen 9, Edición 4, 2010, pp. 327-339
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v9.i4.30
Get accessGet access

SINOPSIS

The complexities of the flame structure above an ammonium perchlorate (AP) and hydroxy- terminated-polybutadiene (HTPB) composite propellant have been elucidated, using a two- dimensional, detailed kinetic model. The model utilizes a vorticity formulation of the transport equations and includes mass and energy coupling between the condensed and gas phases, and a detailed gas-phase kinetic mechanism consisting of 37 species and 127 reactions. Numerical studies have been performed to examine particle-size and pressure effects on the flame structure above an AP/HTPB surface. The combination of AP with a binder/fuel results in a significantly enhanced burning rate relative to monopropellant AP, and this effect increases as AP particle size decreases. The modeled flame structure was found to be qualitatively similar to the Beckstead-Derr-Price (BDP) model. Three different combustion zones were predicted based on particle size: the AP monopropellant limit, the diffusion flame region, and the premixed limit. Calculations varying pressure further illustrate the dynamic nature of AP propellant combustion; as pressure increases, the premixed cutoff size decreases. Results are consistent with experimental observations and provide mechanistic insights into AP's unique combustion properties. Calculations show promise in predicting formulistic effects using high-fidelity models.

REFERENCIAS
  1. Beckstead, M. W., Derr, R. L., and Price, C. F., A model of composite solid-propellant combustion based on multiple flames.

  2. Beckstead, M. W., A model for solid propellant combustion.

  3. Cohen, N. S. and Strand, L. D., An improved model for the combustion of AP composite propellants.

  4. Dworkin, S. B., Bennett, B. A. V., and Smooke, M. D., A mass-conserving vorticity-velocity formulation with application to nonreacting and reacting flows.

  5. Foster, R. L. and Miller, R. R., The influence of the fine AP/binder matrix on composite propellant ballistic properties.

  6. Gross, M. L. and Beckstead, M. W., Fundamental diffusion flame calculations based on detailed kinetics for an AP composite propellant utilizing a vorticity-velocity formulation.

  7. Gross, M. L. and Beckstead, M. W., Diffusion flame calculations for composite propellants predicting particle-size effects.

  8. Massa, L., Jackson, T. L., and Buckmaster, J., New kinetics for a model of heterogeneous propellant combustion.

  9. Miller, R. R., Donohue, M. T., and Martin, J. R., Control of solids distribution 1 - Ballistics of non-aluminized HTPB propellants.

  10. Renie, J. P., Condon, J. A., and Osborn, J. R., Oxidizer size distribution effects on propellant combustion.

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