Unsteady Flow Measurements of Human Micro Environment Using Time Resolved Particle Image Velocimetry

Khan T. A., Higuchi H., Marr D. R. , Glauser M. N.
air velocity, indoor air quality, measurement, simulation
Year:
2004
Bibliographic info:
RoomVent 2004, 9th international conference in University of Coimbra - Portugal, 5-8th september 2004, pp 6, 10 Fig., 1 Tab., 9 Ref.

Experiments have been carried out to measure unsteady velocity fields near the coughing subject (mannequin) and also understand unsteady transport process resulting from this type of transient flow. Representative human cough waveforms were reproduced using a flow simulator and the measurements were made using Time Resolved Particle Image Velocimetry (TRPIV). Initial high velocity as well as rapid velocity decay with time and distance were observed, and velocity time history and vorticity variations were characterized. Unsteady flow field near a coughing subject, previously unavailable, is expected to help validation of numerical simulation tools and improvement of Indoor Air Quality (IAQ).

< Back to publications