Comparison of a new Eulerian model with a modified Lagrangian approach for particle distribution and deposition indoors

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

88 Scopus Citations
View graph of relations



Original languageEnglish
Pages (from-to)5249-5256
Journal / PublicationAtmospheric Environment
Issue number25
Publication statusPublished - Aug 2007
Externally publishedYes


Understanding of aerosol dispersion characteristics has many scientific and engineering applications. It is recognized that Eulerian or Lagrangian approach has its own merits and limitations. A new Eulerian model has been developed and it adopts a simplified drift-flux methodology in which external forces can be incorporated straightforwardly. A new near-wall treatment is applied to take into account the anisotropic turbulence for the modified Lagrangian model. In the present work, we present and compare both Eulerian and Lagrangian models to simulate particle dispersion in a small chamber. Results reveal that the standard k-ε Lagrangian model over-predicts particle deposition compared to the present turbulence-corrected Lagrangian approach. Prediction by the Eulerian model agrees well with the modified Lagrangian model. © 2007.

Research Area(s)

  • Dispersion, Indoor air quality, Mixing, Particulate matter