How Covid-19 spreads: simulations and visualisations

This is a list of visualisations of how aerosols and droplets spread. While not all are related to Covid-19, they are relevant and worth watching. Happy to add more if anyone finds them. 

•  Coughing
  • A 3D model of a person coughing in an indoor environment – how an aerosol cloud travels in the air – YouTube
  • A new, rapidly put together study on coronavirus and air-borne particles has released first results. The study included researchers from Aalto University, the Finnish Meteorological Institute (FMI), Technical and Innovation Centre VTT and Helsinki University.  
  • Source: Supercomputer Modeling Tests How COVID-19 Spreads in Grocery Stores
  • Stay 6 Feet Apart. Mechanically Simulated Cough Reveals That May Not be Enough. – YouTube
  • Coughs and sneezes travel farther than you think – YouTube
  • Watch droplets in a cough speed through the air | Science News – YouTube
• Sneezing
  • The physics of the sneeze – YouTube
  • Sneezing and Coronavirus Disease 2019 (COVID-19) – YouTube
  • How Contagious Is A Single Sneeze? – YouTube
  • Coronavirus (Covid19) Simulation of sneeze using Cradle scFLOW. – YouTube
  • Interaction between droplets and fluids during sneeze using Cradle CFD – YouTube()
  • A Sneeze | NEJM
• Place
  • How coronavirus spreads outdoors vs. indoors – YouTube
• Talking
  • Talking could transmit SARS-CoV-2, early NIDDK research suggests – YouTube
  • The airborne lifetime of small speech droplets and their potential importance to SARS-CoV-2 transmission | Zenodo downloadable files
    • This is the paper: The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission | PNAS
• Breathing
  • PLOS ONE: Qualitative Real-Time Schlieren and Shadowgraph Imaging of Human Exhaled Airflows: An Aid to Aerosol Infection Control (I have uploaded hi-res versions of the visualisations here, with permission. Also included are walking, talking, singing, coughing, laughing and passing)
• Exercising
  • Facing COVID-19 Challenges: Leave Additional Space When Exercising – YouTube
• Combined
  
  • COVID 10: Is COVID-19 an airborne disease? Will we all need to wear face-masks against SARS-CoV-2? – YouTube
    In this video we first define what a droplet and an aerosol is based on their behaviour in the environment. We then examine both through the findings from two published studies. We will also discuss how long viral particles survive and stay viable and able to infect after they fall on a surface or get suspended in the air.
  • Coronavirus: New Facts about Infection Mechanisms – NHK Documentary – YouTube
    An experiment conducted by NHK and researchers showing ‘micro-droplets’ when someone sneezes, or during talking. 
  • COVID-19 Simulation Solutions | Ansys
  • The importance of masks and social distancing – YouTube
  • Small saliva droplets can remain airborne more than 10 minutes, NIDDK study shows – YouTube
  • This 3-D Simulation Shows Why Social Distancing Is So Important – The New York Times
  • Cover smart. Do your part. Slow the spread. | NIST (high-speed visualizations illustrating a flow when breathing and coughing using home-made masks.)