Dynamic coupling of multi-phase fluids with a moving obstacle

Tso Ren Wu, Chih Jung Huang, Mei Hui Chuang, Chung Yue Wang, Chia Ren Chu

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


In this paper, we present a two-way coupled moving solid algorithm with discrete element method (DEM) to simulate dynamic fluid-solid interaction. This model allows obstacles moving in the multi-phase fluids to generate realistic motion for both the fluids and obstacles. We discretize the Navier-Stokes equation using finite volume method (FVM) for the fluid part. The volume-of-fluid (VOF) method is used to track the fluid-fluid and fluid-solid interfaces. This algorithm is useful in the fields of Engineering and Earth Sciences, such as structure collapse and landslide generated tsunamis. Examples of landslide tsunami and floating cubes are demonstrated using the algorithm.

Original languageEnglish
Pages (from-to)643-650
Number of pages8
JournalJournal of Marine Science and Technology (Taiwan)
Issue number6
StatePublished - 2011


  • Discrete element method (DEM)
  • Floating cube
  • Landslide tsunami
  • Moving solid algorithm
  • Volume of fluid (VOF)


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