vac⋅u⋅um
1. a space entirely devoid of matter.
2. an enclosed space from which matter, esp. air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere (opposed to plenum ).
Vaccuums are created in an entirely differently manner than a lower pressure caused by the flow of air over a curved surface.
How do you explain the carbeurator's function, if it doesn't create a vacuum?
How do you explain the carbeurator's function, if it doesn't create a vacuum?
all the dictionary definitions seem to require an enclosure to officially be a "vacuum" ... i.e., there a physical barrier that prevents fluid from flowing a high pressure region to a region of low pressure.
Dictionary definitions are not very reliable when it comes to scientific terms. What physical barrier ensures the vacuum of outer space?
Pressure differential is a better way to think about it. What if both sides of the wing were shaped exactly the same way? Would the "vacuum" exist? I like teaching pressure differential.
"Pressure differential" is the only meaningful concept. "Vacuum" is an imprecise, relative term. A total vacuum on two sides of a plate will generate no force. If you have slightly less "vacuum" on one side of the plate with respect to the other, a force will be generated.
Likewise, there is no real existence of "suction"; it's just an area of pressure lower than surrounding pressure.
Again... This then points to the high pressure on the lower surface being the driving force of lift. It says to me that because there is a lower pressure above the wing, then it's all about Newton pushing up through said low pressure of Bernoulli.
"Pressure differential" is the only meaningful concept. "Vacuum" is an imprecise, relative term. A total vacuum on two sides of a plate will generate no force. If you have slightly less "vacuum" on one side of the plate with respect to the other, a force will be generated.
Likewise, there is no real existence of "suction"; it's just an area of pressure lower than surrounding pressure.
This then points to the high pressure on the lower surface being the driving force of lift.
I'm lost. I've never heard or read about Bernouli and Low/High Pressure being associated with Carburetors. Could someone flesh it out some more for me?
The incoming air gets sped up through the venturi and creates an area of lower pressure that sucks the fuel out of the reservoir and into the engine. The air through the venturi is of lower pressure that the fuel in the reservoir (same concept as lift/Bernoulli)
SUCKS Equals VACUUM
SUCKS Equals VACUUM