Improved guidelines of indoor airborne transmission taking into account departure from the well-mixed assumption
Jorge Salinas, K. A. Krishnaprasad, Nadim Zgheib, S. Balachandar
Abstract
We use large eddy simulations with the Euler-Lagrange point-particle approach to assess the appropriateness of the well-mixed theory in predicting indoor risk of contagion. A novel `statistical overloading' technique allows us to analyze infinitely many scenarios, with only one data-rich simulation. The figure shows the droplet nuclei (left half of the room; see color map for radius of nuclei `r') and an iso-surface of velocity magnitude (in yellow). The inset (bottom right) shows one of the infinitely many expiratory events that can be analyzed.
Topics & Concepts
RADIUSPoint (geometry)Transmission (telecommunications)Euler's formulaStatistical physicsMeteorologyStatisticsComputer scienceMathematicsEnvironmental sciencePhysicsMathematical analysisGeometryTelecommunicationsComputer securityInfection Control and VentilationAerodynamics and Acoustics in Jet FlowsParticle Dynamics in Fluid Flows