Airborne lifetime of respiratory droplets

  title={Airborne lifetime of respiratory droplets},
  author={Avshalom Offner and Jacques Vanneste},
We formulate a model for the dynamics of respiratory droplets and use it to study their airborne lifetime in turbulent air representative of indoor settings. This lifetime is a common metric to assess the risk of respiratory transmission of infectious diseases, with longer lifetime correlating with higher risk. We consider a simple momentum balance to calculate the droplets spread, accounting for their size evolution as they undergo vaporization via mass and energy balances. The model shows how… 

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