Numerical simulation of gas-solid two-phase flow in lung airways

Y. Li, C. Zhang, J. Zhu

Research output: Journal PublicationArticlepeer-review

1 Citation (Scopus)


A realistic 3D model to represent the human mouth-laryngeal part and five upper generations of bronchi parts is used in this study to investigate the airflow and solid particle deposition patterns in human airways. Computational fluid dynamics (CFD) simulation of the airflow and solid particle deposition in the lung model are conducted. When the solid particle diameter is under 5μm, the local airflow velocity field is the dominant factor for the local concentration of the particles on the wall. The airflow field is obtained by solving three-dimensional Navier-Stokes equations with the standard k-ε turbulence model and standard wall function. The Lagrangian reference frame is used to predict the trajectories of solid particles. A one-way-coupled stochastic model is used to model the influence of turbulence in airflow on particle trajectories. A segregated, implicit, steady and three dimension solver is used for the simulation. The power law scheme is used to discrete the transport equations.

Original languageEnglish
Pages (from-to)357-360
Number of pages4
JournalInternational Journal of Nonlinear Sciences and Numerical Simulation
Issue number3
Publication statusPublished - 2006
Externally publishedYes


  • CFD
  • Gas-solid flow
  • Lung airways
  • Numerical simulation
  • Turbulence
  • Two-phase flow

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Computational Mechanics
  • Modelling and Simulation
  • Engineering (miscellaneous)
  • Mechanics of Materials
  • General Physics and Astronomy
  • Applied Mathematics


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