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Volume 25 Issue 创刊号
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2017  >  25(创刊号): 052-56
CHAO Kan, NIU Nan, LU He-jian. Effect of Primary Water-to-Fuel Ratio on Specific Impulse Performance of Water Ramjet with High Metal Content Propellant[J]. Journal of Unmanned Undersea Systems, 2017, 25(创刊号): 052-56. doi: 10.11993/j.issn.2096-3920.2017.01.004
Citation: CHAO Kan, NIU Nan, LU He-jian. Effect of Primary Water-to-Fuel Ratio on Specific Impulse Performance of Water Ramjet with High Metal Content Propellant[J]. Journal of Unmanned Undersea Systems, 2017, 25(创刊号): 052-56. doi: 10.11993/j.issn.2096-3920.2017.01.004
shu

Effect of Primary Water-to-Fuel Ratio on Specific Impulse Performance of Water Ramjet with High Metal Content Propellant

doi: 10.11993/j.issn.2096-3920.2017.01.004

  • Xi′an Aerospace Propulsion Institute, Xi′an 710025, China

  • Received Date: 2017-01-20
  • Rev Recd Date: 2017-02-16
  • Publish Date: 2017-04-20
    Abstract
  • To improve specific impulse performance of a water ramjet, based on eddy-dissipation combustion model, a 3D multi-phase flow non-premixed combustion reaction model was established for the water ramjet with high metal content magnesium-based propellant. Further, the effects of water-to-fuel ratio on such parameters as temperature distribution and variation of composition in afterburning chamber as well as specific impulse of the water ramjet were obtained, and the calculations are in good agreement with the experiment results. It is shown that the primary water-to-fuel ratio is more important to performance improvement of the water ramjet, and the specific impulse of the water ramjet firstly increases then decreases with the increase of primary water-to-fuel ratio, showing an optimum primary water-to-fuel ratio, at which the water ramjet gains the highest specific impulse.

     

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