At what maximum force and velocity can a person theoretically exhale air?


Answer from: Inga R.:
Raising children and animals...


Let's take it as a given that the air goes out of us due to the difference of pressures. That is, we constrict the lungs, making the pressure there higher than the surrounding pressure, and the air comes out by itself. So we need to estimate how fast we can compress the air there. In addition, the temperature difference between the ambient air and the indoor air will play a role. let's not forget that the outgoing air is 100% humid, and the air outside is probably drier.

As you can see, the task is not as simple as it seems. So I won't do any specific calculations.

I will only assume that the speed of directional air flow most likely will not be able to exceed the speed of sound, i.e. about 340 m:s

Physics, human physiology, physiology

Ask the questions that interest you, even if they seem silly, childish, strange, funny, embarrassing, uncomfortable, or abstruse.

ASKRUS.Guru 2019-2021©