Using machine learning to differentiate types of particle jumps in DNS data of sediment transport

Research output: Contribution to conferencesPaperContributedpeer-review

Contributors

Abstract

In this study, machine learning is used to identify types of jumps that share motion patterns of saltating particles in sediment transport based on DNS data. For this purpose, a framework is proposed, consisting of a partitioning of jumps and a subsequent calculation of prototypical jumps. The partitioning is achieved through cluster ensembles that aggregate the results from numerous k-means clustering models. The inputs for these models consist of large numbers of features per jump, extracted via time series analysis. As a result, four different types of jumps, associated with different stages of transport, are identified. Corresponding prototypical jumps are computed using a modified variant of dynamic time warping barycenter averaging and serve as models for the types. The framework contributes to improving the understanding of particle saltation.

Details

Original languageEnglish
Pages1812 - 1821
Number of pages10
Publication statusPublished - 2025
Peer-reviewedYes

Conference

Title41st International Association for Hydro-Environment Engineering and Research (IAHR) World Congress
SubtitleInnovative Water Engineering for Sustainable Development
Abbreviated titleIAHR 2025
Conference number41
Duration22 - 27 June 2025
Website
Degree of recognitionInternational event
LocationSingapore EXPO
CitySingapore
CountrySingapore

External IDs

Scopus 105024946750
ORCID /0000-0003-1653-5686/work/203070357

Keywords

Keywords

  • Clustering, DNS, Machine learning, Non-spherical particles, Sediment transport