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The prediction of the spread of the new corona virus has been announced using the latest “Tomitake” supercomputer, and in the cockpit of the aircraft, if you cough while reclined, the flight will spread in the cockpit, but with the use of a mask. It is said that the scattering can be suppressed to a great extent.
Research teams like Makoto Tsubokura, team leader from the Institute for Physical and Chemical Research in Kobe, are using “Tomitake” to study the spread of the new corona virus.
This time, in collaboration with Japan Airlines and others, we analyzed the spread of flying in the cockpit of an airplane by coughing without a mask.
As a result, it was found that when coughing in a normal posture, large jumps hit the seats in the first row and fell, but when using the reclining seat, many jumps extended to the front, rear, left and right seats. ..
In addition, the air from the air conditioner quickly diffuses into the cabin small flying particles called aerosols that did not fall.
On the other hand, the use of a mask reduced the number of aerial shots to a third, and was effective in reducing the risk of infection in any position.
We also simulate how the flight changes depending on whether the window is open when the driver coughs while traveling by taxi.
If you keep the driver’s seat and rear seat windows open, about a quarter of the flight will be discharged through the driver’s side window after 20 seconds.
Also, if you add a partition that separates the driver’s seat from the back seat, the flight will not be extended and after 20 seconds the flight will be cut in half.
Also, even if the window is closed, if the air conditioning ventilation mode is turned on, the air will be replaced in about 90 seconds, which is why increasing the air volume of the air conditioning is said to be more effective than opening the window. 5 cm. I get it.
In this simulation conducted by research teams such as the Institute for Physical and Chemical Research on the latest “Tomitake” supercomputer, we also analyze the movement of flying on karaoke boxes and outdoor activities.
This is the effect when 9 people enter a karaoke of about 20 square meters.
When a person sings without a mask, the large fly will fly forward or over the desk, and the small fly called aerosol will quickly spread around the room in about 30 seconds after starting to sing the song.
On the other hand, when I put on a mask and a mouth guard and sang while standing under the exhaust port, I was able to considerably suppress the diffusion of aerosols.
Simulations were also conducted in outdoor activities that are considered safer than indoors.
Outdoors, the fly does not spread immediately, and if there is no wind, the fly will fly towards the person in front, and even if the wind blows, the risk of being exposed to the fly increases depending on the direction.
Without a mask, a distance of 1 to 1.7 meters can cut the amount of flight that can be achieved in half, and he notes that it is important to maintain your distance even when outdoors.
