Validation of a fast-fluid-dynamics model for predicting distribution of particles with low stokes number

Wangda Zuo, Qingyan Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To design a healthy indoor environment, it is important to study airborne particle distribution indoors. As an intermediate model between multizone models and computational fluid dynamics (CFD), a fast fluid dynamics (FFD) model can be used to provide temporal and spatial information of particle dispersion in real time. This study evaluated the accuracy of the FFD for predicting transportation of particles with low Stokes number in a duct and in a room with mixed convection. The evaluation was to compare the numerical results calculated by the FFD with the corresponding experimental data and the results obtained by the CFD. The comparison showed that the FFD could capture major pattern of particle dispersion, which is missed in models with well-mixed assumptions. Although the FFD was less accurate than the CFD partially due to its simplification in numeric schemes, it was 53 times faster than the CFD.

Original languageEnglish (US)
Title of host publication12th International Conference on Indoor Air Quality and Climate 2011
Pages323-328
Number of pages6
StatePublished - Dec 1 2011
Event12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States
Duration: Jun 5 2011Jun 10 2011

Publication series

Name12th International Conference on Indoor Air Quality and Climate 2011
Volume1

Other

Other12th International Conference on Indoor Air Quality and Climate 2011
CountryUnited States
CityAustin, TX
Period6/5/116/10/11

Keywords

  • CFD
  • FFD
  • Low Stokes Number
  • Particle Transportation

ASJC Scopus subject areas

  • Pollution

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  • Cite this

    Zuo, W., & Chen, Q. (2011). Validation of a fast-fluid-dynamics model for predicting distribution of particles with low stokes number. In 12th International Conference on Indoor Air Quality and Climate 2011 (pp. 323-328). (12th International Conference on Indoor Air Quality and Climate 2011; Vol. 1).