Construction of characterizing system for saliva droplets produced by human expiratory activities

Soon Bark Kwon, Youngmin Cho, Duck Shin Park, Jae Hyung Park, Changsoo Kim, Gwi Nam Bae

Research output: Contribution to journalConference articlepeer-review


This paper describes construction of characterizing system for cough jet with saliva droplets produced by human expiratory activities, i.e., cough and speech. The characterization system utilizes the particle image velocimetry (PIV) for visualization of a cough jet flow. For the validation of new system, preliminary test was performed by 26 subjects cough and speech experiment. The averaged results of jet velocity by cough showed the comparable values with other researchers. In addition, a cough simulator was developed for producing a repetitive and controllable coughing flow. In future work, we believe that further data analysis of PIV measurements and optimization of operation parameters of the cough simulator based on PIV experiments will give more hints for understanding the aerodynamic properties of a cough jet flow.

Original languageEnglish
JournalIAQ Conference
Publication statusPublished - 2011
EventAirborne Infection Control - Ventilation, IAQ, and Energy Conference, IAQ 2010 - Kuala Lumpur, Malaysia
Duration: 2010 Nov 102010 Nov 12

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Environmental Engineering
  • Public Health, Environmental and Occupational Health


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