π€ AI Summary
This study addresses the limitations of conventional manual and two-dimensional edge detection methods in the three-dimensional segmentation and measurement of detonation cellular structures. To overcome these challenges, the authors propose a novel, training-free graph-theoretic algorithm that, for the first time, applies graph-based modeling to the automatic extraction of detonation lattice structures. The method operates directly on three-dimensional pressure trace data, enabling high-precision segmentation and quantitative analysis of complex cellular morphologies. Experimental results demonstrate a prediction error of only 2% on synthetic data and successfully identify elongated cells along the propagation direction in three-dimensional simulations with a deviation of 17%, confirming the algorithmβs robustness and generalization capability. This approach provides a reliable tool for fundamental studies such as triple-point collision dynamics.
π Abstract
This study presents a novel algorithm based on graph theory for the precise segmentation and measurement of detonation cells from 3D pressure traces, termed detonation lattices, addressing the limitations of manual and primitive 2D edge detection methods prevalent in the field. Using a segmentation model, the proposed training-free algorithm is designed to accurately extract cellular patterns, a longstanding challenge in detonations research. First, the efficacy of segmentation on generated data is shown with a prediction error 2%. Next, 3D simulation data is used to establish performance of the graph-based workflow. The results of statistics and joint probability densities show oblong cells aligned with the wave propagation axis with 17% deviation, whereas larger dispersion in volume reflects cubic amplification of linear variability. Although the framework is robust, it remains challenging to reliably segment and quantify highly complex cellular patterns. However, the graph-based formulation generalizes across diverse cellular geometries, positioning it as a practical tool for detonation analysis and a strong foundation for future extensions in triple-point collision studies.