AIVC - Air Infiltration and Ventilation Centre

Search form

EBC

You are here

Home  |  wind tunnel

Numerical analysis of particle behaviors in indoor air using Lagrangian method

Zhang Z., Chen Q., 2004
wind tunnel | displacement ventilation | prediction | particulate
Bibliographic info: RoomVent 2004, 9th international conference in University of Coimbra - Portugal, 5-8th september 2004, pp 6, 10 Fig., 1 Tab., 13 Ref.
Languages: English

As particles in room air can cause lung diseases, it is important to study how they are transported and dispersed in buildings. This investigation numerically studied particle dispersion by using the Lagrangian approach. The turbulent airflow is solved by the RNG k-e model; and a discontinuous random walk (DRW) model is applied to account for the stochastic effect of particle movement in turbulent flow. The computed results agree reasonably well with the experimental data for particle dispersion in a wind tunnel. This paper also studied particle dispersion in a floor displacement ventilated room. Results showed that particle movement may be very different from the airflow pattern, and a high exposure risk of the occupants to particles has been found when they are generated in a recirculation area.


Related publications

Setting sustainable urban development goals and developing energy efficient solutions f
INIVE eeig,
AIVC Literature List 35 is linked to the topics of “building & ductwork airtightnes
AIVC,
Setting sustainable urban development goals and developing energy efficient solutions f
INIVE eeig,