Experimental Study on Particle Size Distribution of Aluminum Combustion under Acoustic Oscillation

Jiang Yuan, Bingning Jin, Yu Liao, Zhixin-Wang, Lin Gan, Yuanhua Wang, Peijin Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The aluminum powder combustion has a great influence on the combustion instability in the solid rocket motors (SRMs). The condensed phase products (CPPs) can effectively damp the acoustic waves of the instability, while the aluminum distributed combustion could drive the acoustic waves. Therefore, the study of the particle size distribution of aluminum combustion is essential for understanding the gain and damping factors of combustion instability. In this study, a dynamic combustion diagnosis system for measuring the particle size distribution of aluminum combustion is established, and the characteristics of particle size distribution under different oscillation were studied by the digital in-line holography (DIH). The results show that: influenced by the acoustic oscillation, the agglomeration process of aluminum particles on the burning surface will be different. Compared with the non-oscillation, the acoustic oscillation can affect the agglomeration of aluminum particles on and near the burning surface, and the mean diameter of D10, D32, D43, the agglomeration particle size (Dagg) and agglomeration fraction (fagg) all increase under acoustic oscillation.

Original languageEnglish
Title of host publication2022 13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages45-50
Number of pages6
ISBN (Electronic)9781665472357
DOIs
StatePublished - 2022
Event13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022 - Bratislava, Slovakia
Duration: 20 Jul 202222 Jul 2022

Publication series

Name2022 13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022

Conference

Conference13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022
Country/TerritorySlovakia
CityBratislava
Period20/07/2222/07/22

Keywords

  • acoustic oscillation
  • agglomeration process
  • aluminized composite propellant
  • digital in-line holography
  • particle size distribution

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