Resolved-particle simulation by the Physalis method: Enhancements and new capabilities

Adam J. Sierakowski*, Andrea Prosperetti

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

33 Citations (Scopus)
10 Downloads (Pure)


We present enhancements and new capabilities of the Physalis method for simulating disperse multiphase flows using particle-resolved simulation. The current work enhances the previous method by incorporating a new type of pressure-Poisson solver that couples with a new Physalis particle pressure boundary condition scheme and a new particle interior treatment to significantly improve overall numerical efficiency. Further, we implement a more efficient method of calculating the Physalis scalar products and incorporate short-range particle interaction models. We provide validation and benchmarking for the Physalis method against experiments of a sedimenting particle and of normal wall collisions. We conclude with an illustrative simulation of 2048 particles sedimenting in a duct. In the appendix, we present a complete and self-consistent description of the analytical development and numerical methods.

Original languageEnglish
Pages (from-to)164-184
Number of pages21
JournalJournal of computational physics
Publication statusPublished - 15 Mar 2016


  • Computational fluid dynamics
  • Disperse multiphase flow
  • Physalis method
  • Resolved particle numerical simulation
  • Spherical particle
  • 2023 OA procedure


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