Office Sneeze | Examining the Spread of COVID 19 from Person-To-Person in Air-Conditioned Spaces

During the midst of the COVID-19 pandemic, many people are wondering if it is safe to return to life at the office and daily routines. In this simulation, we show the spread of potentially contaminated bodily fluids within an air conditioned office space.
When a person sneezes, contaminated particles, including aerosols, are projected into the surrounding space. Particles may be carried up to three feet (or one meter) by the turbulent airflow generated by the sneeze and heavy particles from the sneeze fall to the floor. Within an office building, the particle spread can be enhanced by the central heating and air used to control the temperature and ensure employee comfort.
Deposition of bodily fluids on surfaces can then be observed using the simulation results with colored maps on the surface (blue for low concentration, red for high concentration). Droplets, which are identified in the simulation as small blue and green particles in the air, can be as small as the virus itself - called aerosols - and remain in suspension in the air, potentially getting carried across the room or into the ventilation system by the airflow of the central air.
Our simulation supports the finding that if viruses can be aerosolized, they can potentially be redistributed throughout office building ventilation systems. We used published research on water droplet size distribution emitted by a sneeze as a starting point for our simulations.
Want to see more on the COVID-19? Check out our face shield simulation: • Sneeze Test on a 3D Pr...
About SIMULIA: Powered by the 3DEXPERIENCE® Platform, SIMULIA delivers realistic simulation applications that enable users to reveal the world we live in. SIMULIA applications accelerate the process of evaluating the performance, reliability, and safety of materials and products before committing to physical prototypes.SIMULIA offers an advanced simulation product portfolio, including Abaqus, Isight, fe-safe, Tosca, Simpoe-Mold, SIMPACK, CST Studio Suite, XFlow, PowerFLOW and more.
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The simulation(s) by Dassault Systèmes and other technical or operational information represented in this article are presented as an illustration and are for informational purposes only. Any use of information presented in or derived from this article is at the viewer’s sole risk and Dassault Systèmes disclaims all related liability.

[@JudgeFredd]

It's always the bald guy

[@cmoudyrybicka]

Remember!!! It is now days ALWAYS the WHITE BALD dude!!!

[@juanvences4380]

Simula-inception 0:12
Dude is apparently just looking at dead screens 0:15
Great simulation!
and blonde lady is missing all the action

[@harrystoller4147]

Is that how it all happened?

[@misterspike]

A wonderfully effective demonstration!
Now if you were to do similar simulations showing the differences between hospital masks, home-made fabric masks, and plastic face shields, and prepared it as a graphic demonstration suitable for the news media to use, it would be a huge help to everyone across the planet AND provide some wonderful free promotion for your excellent product!

[@demigog9523]

Or why not conduct some REAL studies.

[@bobsnabby2298]

No difference no matter how do u sneeze, doplets spread just different but they do anyway
.

[@lofturhjalmarsson9896]

block of flats, l was thinking, walking stairs up to top floor without breathing the air in the stairs can be done by...having a string hanging down in middle opening between stairs , pull on it and down comes a hose or can be diy plastic and tape hose , upper end is going through door say peephole and has a fan pushing apt air into it, here the attick has a ventialtor hole above my door can use the attic air if stairs air is not flowing into it , attics usually have many holes to outiside on purpose here. . grab lower end and put it under your mask or head bag , well then some unbreathed air will get lost. maybe best to like suck on end. or not suck but get the fresh air safe air. walk up . pullhose back up maybe into apartment . make ready to be pulled down next time. or let it hang there while out, or can pull on it so upper end comes loose from smaller pipe that hose goes over, falls down after use store it in bike room or. similar could be done going up , by a..permanent hose going down painted wite to look better on white walls, or just drill hole into garbage room put a nozzel on the wall , or down in corner or up in corner. but garbage openings are two on the stairway wall for four floors here, could just open put head inside and breathe a few times or let that air it pushes out go into a big bag over half of body. . why does nobody write talk about any ideas like this...covid seems more airborn than first thought, people talk couch in stairs even stop for some time there. talk makes more airosol virus , going down a big bag over top of body can be used maybe breathing less going down but what if oxygene runs out..could be deadly even. fall pass out. in bag. four floors here. ....could open windows in stairs before going down , maybe say ten min before , and can do that before going up and also open down stairs door and outside door to get air moving much more. through stairs and lobby. guess many can not. ....or could make own stairs outside rather unsafe but can have double lines and harness n fallarrest like for builders lines spooled into like safety belt thing that locks when pulled, , safest is like on cranes steps incased in cage and down one floor that stops you falling further , then next hole and ladder. or like that falling down a cloth pipe emergency thing. from the balcony. or lines wheel and counterweight makes climbing easy gets pulled up so steps made easy. ............................. buses could have holes under windows bring own hose , or remove window or two , maybe only in half of bus and mid wall seperation. schools could do similar. grocery stores could remove windows put old doors instead or openable windows . 3

[@Cynd911]

Aayla

[@jeffw5168]

Computer simulated propaganda. How about showing some real people actually sneezing both with a mask and not and either lighting or some other form of being able to see the sneeze particles? Plus, I do not know anyone who stands right behind someone and sneezes over the top of them. That is ridiculous. The low grade masks people are wearing have gaps all over them, in a building with air conditioning, I would expect they will have rather minimal limiting effects of the spread. And think logically, the force of a sneeze will be blowing out of every crack. Then, as we have face coverings that we all touch and then touch something else... I think this is all wishful thinking that these lower level makes do much of anything.

[@nympho25]

there is a video using real people.. check this out:
ruclips.net/video/DNeYfUTA11s/видео.html