In his keynote talk from the COMSOL Conference 2020 North America, Nagi Elabbasi of Veryst Engineering shares how CFD and particle tracing simulation can be used to analyze particulate flow between two people jogging 6 feet apart in tandem and outdoors. A model of this kind can increase our understanding of airborne pathogen transmission.
Nagi Elabbasi is a principal engineer at Veryst Engineering, where he specializes in simulating nonlinear and multiphysics systems.
Introduction (0:00) What We Do at Veryst (2:36) Not Just Simulation! (3:04) Modeling Approach (4:01) Flow Streamlines (4:57) Runner Speed and Exhaled Particle Speed (5:15) Exhaled Particle Distribution (5:52) Forces on Particles - Drag and Gravity (6:54) Particle Evaporation (7:58) Evaporation vs. Gravity (8:57) Animation of Particle Motion (10:08) Aerial View of Particle Spreading (10:46) Sensitivity to Turbulent Intensity (10:52) Summary (11:28) Benefits of Simulation (11:48) References (12:28)