I could see that. Pressure changes by the interruption of the flow causing turbulence.
Thumbing The Bowl
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Used Goggle for greater allusion of intelligence.
The Venturi effect is similar to a jet effect, which is similar to the feeling one gets when the thumb is placed at the end of a garden hose with the water turned on. The water’s velocity increases when the thumb is placed over the water. The pressure increases over the smaller surface area, however, the narrow flow then creates a vacuum in the water. The fluid’s kinetic energy increase results in a pressure decrease, which the physics laws governing fluid dynamics explain. When the fluid reaches a choked flow point, the mass flow decreases, resulting in a decrease in downstream pressure. Bernoulli’s equation can be used to calculate the theoretical pressure drop in a system that experiences the Venturi effect.
Perhaps in essence it is something like blowing on a fire to increase availability of oxygen for combustion, in this case while generating a partial vacuum, so you don’t get a snoot full of ashes from blow back.
The Venturi effect is similar to a jet effect, which is similar to the feeling one gets when the thumb is placed at the end of a garden hose with the water turned on. The water’s velocity increases when the thumb is placed over the water. The pressure increases over the smaller surface area, however, the narrow flow then creates a vacuum in the water. The fluid’s kinetic energy increase results in a pressure decrease, which the physics laws governing fluid dynamics explain. When the fluid reaches a choked flow point, the mass flow decreases, resulting in a decrease in downstream pressure. Bernoulli’s equation can be used to calculate the theoretical pressure drop in a system that experiences the Venturi effect.
Perhaps in essence it is something like blowing on a fire to increase availability of oxygen for combustion, in this case while generating a partial vacuum, so you don’t get a snoot full of ashes from blow back.
Or by not sealing it entirely. The flow of air isn't completely cut off.
Whatever. I like your posts and respect your knowledge, I'm done arguing with you about it. It's not important to me for you to be wrong, I realize I should have never started this regardless of right or wrong. I apologize.
You would have to leave some of it uncovered or you couldn’t draw any smoke/air through the stem…. Correct?
hate to say it but I agree with embers. He is correct.
You could draw in whatever air is in the bowl. If you crimp a hose by 1/8, you increase the velocity of the flow of water on the discharge side. If you put one finger over the bowl of the pipe, it does nothing. You may draw whatever conclusions you wish, that doesn't make it fact.
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