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国际能源材料和化学驱动期刊

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ISSN 打印: 2150-766X

ISSN 在线: 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

EXPERIMENTAL STUDY OF A T-BURNER RESONATOR

卷 8, 册 3, 2009, pp. 173-182
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i3.10
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摘要

In this study, an experimental investigation of solid propellant combustion instability using a T-Burner setup was performed. For this purpose, an available T-Burner setup was modified and enhanced. A combustion chamber, choked nozzle, measurement instruments, and data acquisition systems form the T-Burner. The modified T-burner setup was operated for a specific non-metallized solid propellant. To obtain the response of the propellant to different excitation frequencies, the natural frequency of the burner was changed by altering the chamber length. Various chamber lengths were tested and several mean pressure values were measured. The effect of the burning surface on pressure fluctuations was also investigated by altering the propellant configuration. Pressure data revealed oscillatory behavior as expected. Post processing was performed on the collected data set to investigate the effect of different frequencies separately on the response of the selected propellant. Combustion instability studies for solid propellants require determination of the response function of the propellant. To realize that objective, the effect of gains and losses to the pressure oscillations had to be identified. So, the growth and the decay rates of pressure fluctuations were needed to calculate the response function of the propellant at a specific frequency. However, the data obtained from the T-burner used with a nozzle combined both the effects of decay and growth. The growth rate is a function of propellant, but the decay rate is only a function of the chamber. Therefore, to separate the decay rate, the growth rate was halved for the same chamber pressure by changing the burning surface. Then, from the difference of measured amplitude values, growth and decay rates were attained for the selected propellant for the frequency and mean pressure values at which the experiments were performed. The response function of the propellant was obtained.

参考文献
  1. Culick, F.E.C. and Yang, V., Prediction of Unsteady Motion in Solid-Propellant Rocket Motors, Nonsteady Burning and Combustion Instability of Solid Propellants.

  2. Strand, L.D. and Brown, R.S., Laboratory Test Methods for Combustion-Stability Properties of Solid Propellants, Nonsteady Burning and Combustion Instability of Solid Propellants.

  3. Price, W.E., Experimental Investigation of Combustion Instability Fundamentals of Solid Propellants.

  4. Culick, F.E.C., Unsteady Motions in Combustion Chambers for Propulsion Systems.

  5. Çekiç, A., Experimental Study of Solid Propellant Combustion Instability.

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