The discussion revolves around the physics of blowing a puff of air, specifically addressing the behavior of air velocity as it exits the mouth and interacts with surrounding air. Participants explore concepts related to air resistance, fluid dynamics, and the mathematical expressions that could describe these phenomena.
Participants do not reach a consensus on the mathematical resolution of the phenomena discussed. Multiple viewpoints regarding the behavior of air velocity and the effects of air resistance remain present.
Participants acknowledge limitations in their understanding of fluid mechanics and the mathematical expressions that could apply, with some expressing uncertainty about the complexity involved.
This discussion may be of interest to those studying fluid dynamics, physics enthusiasts exploring air movement, or individuals curious about the interaction of moving air with stationary environments.
In the confined space of the small tunnel made by your lips, all of the air is moving rapidly. But when it exits your lips it runs into stationary air and pushes it out of the way. But then this air runs into even more stationary air and pushes it away. Which runs into even more stationary air...etc etc etc. On top of this, the air that's pushed out of the way is replaced by slow moving air coming in from behind, which itself then has to be pushed out of the way by your breath. The end result is that your breath only has a small distance in which it retains any significant velocity.jhan said:
I throw in the towel when it comes to anything beyond basic calculus, of which fluid mechanics definitely is beyond.jhan said:
The physics of a towel thrown through the air as it gradually opens up must be quite complicated, I imagine.Drakkith said:
