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

A. Sierakowski, Andrea Prosperetti

Research output: Contribution to journalArticleAcademicpeer-review

23 Citations (Scopus)

Abstract

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
Volume309
DOIs
Publication statusPublished - 2016

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Enhancement
Particle interactions
augmentation
Multiphase flow
Benchmarking
Ducts
Numerical methods
Simulation
simulation
Boundary conditions
multiphase flow
particle interactions
ducts
Multiphase Flow
Experiments
Scalar, inner or dot product
boundary conditions
Siméon Denis Poisson
scalars
Interior

Keywords

  • IR-101176
  • METIS-317328

Cite this

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abstract = "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.",
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Resolved-particle simulation by the Physalis method: Enhancements and new capabilities. / Sierakowski, A.; Prosperetti, Andrea.

In: Journal of computational physics, Vol. 309, 2016, p. 164-184.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Resolved-particle simulation by the Physalis method: Enhancements and new capabilities

AU - Sierakowski, A.

AU - Prosperetti, Andrea

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AB - 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.

KW - IR-101176

KW - METIS-317328

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