Related Experiment Video
Updated: Jun 4, 2026

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes
Published on: May 26, 2014
Flow Characteristics of Composite Droplets in the Combustion State Impacting a Wall
Fengchao Li1, Chenchao Dai1, Dudou Wang1
1Rocket Force University of Engineering, Xi'an 710025, P. R. China.
None:
During the operation of a solid rocket motor (SRM), the behavior of condensing particles impacting the wall significantly influences the internal structure and performance of the SRM. Especially under overload conditions, the condensate particles form local high-concentration particle flows due to inertia forces, continually eroding the surface of the insulation layer and nozzle, which seriously affects the SRM's operational safety. In this paper, the impact behavior of condensed particles in the SRM environment is systematically studied. First, the geometric model of alumina/aluminum composite droplets is established through theoretical analysis, and the contact angle of aluminum droplets in a liquid alumina environment is obtained for the first time. Second, based on the volume of fluid (VOF) method and adaptive mesh method, an innovative numerical method is proposed to simulate the collision process of composite droplets. Finally, the dynamic behavior and evolution mechanism of alumina/aluminum composite droplets impacting the wall are deeply analyzed, revealing the flow characteristics of burning aluminum droplets impacting the wall in different incident states. This research provides a theoretical basis for the analysis of multiphase flow in the SRM combustion chamber.
More Related Videos
07:24Combustion Chemistry of Fuels: Quantitative Speciation Data Obtained from an Atmospheric High-temperature Flow Reactor with Coupled Molecular-beam Mass Spectrometer
Published on: February 19, 2018
10:29Experimental Methodology for Estimation of Local Heat Fluxes and Burning Rates in Steady Laminar Boundary Layer Diffusion Flames
Published on: June 1, 2016
Related Concept Videos
Boundary Layer Characteristics
Flame Photometry: Overview
Composite Masonry Walls
Enthalpy and Heat of Reaction
General External Flow Characteristics
Viscosity
The SI unit of viscosity is...