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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

Indexed in

A STUDY OF HYBRID RAMJET PERFORMANCE

Volume 8, Edição 6, 2009, pp. 473-488
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i6.10
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RESUMO

A hybrid ramjet is proposed in this paper. It is the combined engine of a liquid-fuel ramjet and a ducted rocket. The high Isp performance and the wide fuel flow control range of a liquid fuel ramjet, and the high ram burner ignitability and stability of a ducted rocket are expected. The hybrid ramjet fuel control range was proved to be twice compared with that of a ducted rocket. The optimal burning rate characteristics of the solid fuel were investigated. The same burning rate characteristics as the normal solid propellant for a solid rocket were sufficient for the fuel flow control of the hybrid ramjet. Theoretical performance calculations about the hybrid ramjet were conducted. As the ratio of the liquid to the solid fuel flow rate increases, the Isp becomes higher. When it is 3 to 1, Isp is 68% higher than that of a ducted rocket. Direct connect combustion tests were also conducted with only solid fuels, which contain boron. The ram burner ignitability was proved to be good.

Referências
  1. Kubota, N., Miyata, K., Kuwahara, T., Mitsuno, M., and Nakagawa, I., Enegetic Solid Fuels for Ducted Rockets.

  2. Markstein, G.H., Combustion of Metals.

  3. Nihon Kagaku Gakkai, Kagakubinran Kisohen.

  4. Hikita, T. and Akita, K., Nensyogairon.

  5. Gordon, S. and McBride, B.J., Computer Program for Calculation of Complex Chemical Equilibrium Compositions and Applications.

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