Characterization of the initial agglomerates of aluminized composite propellants

M Liu, Z Liu, S Li, W Yu, N Wang - Acta Astronautica, 2021 - Elsevier
The size distribution and morphology evolution of the initial agglomerates on the burning
surface of aluminized composite propellants have a strong influence on the agglomeration …

Aluminum droplet, oxide cap and flame segmentation in burning Al/AP propellants by combining YOLOv7 and two-stage cluster

Y Wang, H Zhang, Z Zhuo, B Shen, S Wu, W Ao… - Measurement, 2024 - Elsevier
Aluminum additives have complex effects on propellant combustion, and high-speed
microscopic imaging is a valuable tool to investigate these effects. However, challenges …

[PDF][PDF] Experimental analysis of solid-propellant surface during combustion with shadowgraphy images: new tools to assist aluminum-agglomeration modelling

RW Devillers, G Le Besnerais, M Nugue… - … European Conference for …, 2017 - eucass.eu
Studying two-phase flow in solid-propellant motors requires good knowledge of the initial
aluminumdroplet size distribution. Droplet size is strongly influenced by agglomeration …

Experimental analysis of aluminum-droplet combustion in solid-propellant conditions using deep learning

R Devillers, M Nugue, ACH Tong, G Le Besnerais… - EUCASS 2019, 2019 - hal.science
Shadowgraphy is good technique to image aluminum combustion for small solid-propellant
samples. But classical detection methods struggle to provide accurate data on aluminum …

On the distribution of particles in propellant solids

PA Kakavas-Papaniaros - Acta Mechanica, 2020 - Springer
This article examines the distribution of aluminum and ammonium perchlorate particles in
propellants. The volume fraction of solids is determined as a function of the weight fraction of …

Agglomeration in Solid Propellants loaded with inert particles-Study of physical phenomena using shadowgraphy image processing

T Decker, R Devillers, S Gallier - EUCASS 3AF 2022, 2022 - hal.science
New algorithms to study agglomeration in a solid propellant composition loaded with inert
particles are presented. Shadowgraphy images are acquired using a high-speed setup at …

Investigation of aluminum droplet combustion in solid propellant flames: Al-PLIF experiments and numerical simulation

PH Chevalier, N Dorval, RW Devillers… - AIAA Propulsion and …, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-3618. vid Aluminum-droplet
combustion is studied in solid-propellant flame environment at 1.0 MPa. Al vapor is …

New insights into the physics of agglomeration in solid propellants

TG Decker, RW Devillers, S Gallier - EUCASS-CEAS 2023, 2023 - hal.science
Shadowgraphy images of inert particles agglomeration in solid propellants are presented.
New algorithms are developed and applied on three solid propellant compositions burning …

[PDF][PDF] Improving alumina-cap characterization in aluminized solid-rocket motors with computer vision

A Sportilloa, M Airiaua, RW Devillersa… - 2024 - researchgate.net
The study of burning aluminum agglomerates and their impact on solid-rocket motors has
been a significant research focus for many years, and there has been a particular interest in …

Evolution of aluminium droplets in solid propellant combustion by image analysis using deep learning

A Magdeleine, RW Devillers, ACH Tong… - EUCASS-CEAS …, 2023 - hal.science
The shadowgraphy technique enables visualising burning aluminium droplets during
combustion in combustion gases generated by a solid-propellant sample. To analyze these …