Effects of different aluminum particle sizes in composite propellant on distributed combustion response and particle damping

Bing Ning Jin, Pei Jin Liu, Xiao Kun Du, Xin Liu, Yu Guan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

According to the aluminized composite propellants with different initial particle sizes, the characteristics of the particle damping of condensed phase combustion products and the distribution combustion response were researched. The result shows that, particle damping is dependent on the particle size distribution of the condensed phase combustion products and the oscillation frequency, which is reasonably insensitive to the initial aluminum particle sizes. On the aspect of estimating the particle damping, the particle damping computed using the mono-sized particles were different from the value in the experiment, with the relative error more than 10 percent. Thus, further improvement on the prediction method is needed. On the aspect of distributed combustion response, the distributed combustion response is sensitive to the initial aluminum particle sizes in the same oscillation frequency, that is, the bigger the sizes of the initial aluminum particles are, the higher the combustion driven in the combustion, which is not good in solid rocket motor from a combustion instability point of view.

Original languageEnglish
Pages (from-to)1701-1706
Number of pages6
JournalTuijin Jishu/Journal of Propulsion Technology
Volume35
Issue number12
DOIs
Publication statusPublished - 1 Dec 2014
Externally publishedYes

Keywords

  • Aluminum particle sizes
  • Composite propellant
  • Distributed combustion response
  • Particle damping

ASJC Scopus subject areas

  • Aerospace Engineering

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