TY - GEN
T1 - Experimental Study on Particle Size Distribution of Aluminum Combustion under Acoustic Oscillation
AU - Yuan, Jiang
AU - Jin, Bingning
AU - Liao, Yu
AU - Zhixin-Wang,
AU - Gan, Lin
AU - Wang, Yuanhua
AU - Liu, Peijin
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
KW - acoustic oscillation
KW - agglomeration process
KW - aluminized composite propellant
KW - digital in-line holography
KW - particle size distribution
UR - https://www.scopus.com/pages/publications/85137262160
U2 - 10.1109/ICMAE56000.2022.9852896
DO - 10.1109/ICMAE56000.2022.9852896
M3 - 会议稿件
AN - SCOPUS:85137262160
T3 - 2022 13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022
SP - 45
EP - 50
BT - 2022 13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022
Y2 - 20 July 2022 through 22 July 2022
ER -