Development of the sediment transport model using GPU arithmetic

Junsu Noh, Sangyoung Son

Research output: Contribution to journalArticlepeer-review


Many shorelines are facing the beach erosion. Considering the climate change and the increment of coastal population, the erosion problem could be accelerated. To address this issue, developing a sediment transport model for rapidly predicting terrain change is crucial. In this study, a sediment transport model based on GPU parallel arithmetic was introduced, and it was supposed to simulate the terrain change well with a higher computing speed compared to the CPU based model. We also aim to investigate the model performance and the GPU computational efficiency. We applied several dam break cases to verified model, and we found that the simulated results were close to the observed results. The computational efficiency of GPU was defined by comparing operation time of CPU based model, and it showed that the GPU based model were more efficient than the CPU based model.

Original languageEnglish
Pages (from-to)431-438
Number of pages8
JournalJournal of Korea Water Resources Association
Issue number7
Publication statusPublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 Korea Water Resources Association. All rights reserved.


  • GPU
  • Numerical modeling
  • Sediment transport
  • Terrain change

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Science (miscellaneous)
  • Ecological Modelling


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