Why Does Fluid Speed Up as it Moves Into a Narrower Pipe? | Continuity | Fluid Mechanics
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- Опубликовано: 22 июл 2024
- Understand one of the most critical concepts in all of fluid flow. It's really just the conservation of volume within an incompressible fluid. Continuity is a key building block in Bernoulli's equation as well as the function of many hydraulic systems.
By looking at the volume or mass of fluid which passes a point in a pipe, then necking the pipe down to a smaller diameter, the volume or mass of fluid which passes through the narrower section of pipe must be the same (provided the fluid is incompressible).
The viscosity of the the fluid is irrelevant when talking about continuity.
This concept is important in physics, and engineering at both the high school and college level. It shows up in AP Physics as well as Principles of Engineering POE.
Why doesn’t this have many likes . Amazing explanation ❤
Absolutely Incredible! This question has been haunting me for years-- ever since I went to an engineering summer camp and the councilor couldn't explain why this happened. Now it won't be able to keep me up at night anymore!
Congrats on breaking 100 subscribers! Been here since the beginning!!
I’m doing medicine and revising everything. Last time I did this was 5 years back when I was in 1st year and I can say that I never understood this but now I do thank you😭😭
glad to hear.
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Awesome, thank you!
Great video, thank you for sharing!
You bet!
Very well explained. Thank you!
Glad it was helpful!
Nice explanation! Thank you!
Glad you enjoyed it!
Wonderful explanation bro!!!
Glad you liked it
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Thanks! Glad you liked the videos.
@@INTEGRALPHYSICS Thanks😍😍😘😘.
So... how does a butterfly valve slow the flow rate? When you slowly close a butterfly valve in the volume/sec rate of flow on the downstream side of the valve is slower than on the upside stream. Even the flow from a sink faucet does this... as you slowly turn off the faucet, the volume flow from the faucet slows down. That seems to be in defiance of the continuity equation. What am I misunderstanding?
The volumetric flow rate (Q) MUST be the same on both sides of a valve, unless the valve has some sort of leak. Imagine 1L/s flowed into a valve, but only 0.5L/s flowed out... The valve would burst.
Along that line, Bernoulli's Eqn can not be applied across a valve because the valve introduces LOTS of friciton, thus negating Bernoulli's eqn (which relies on frictionless flow).
Which tool you use to draw?
How can I have one similar
I used an ellipse stencil for the circles.
I think if you mention the law of conservation of momentum, that would explain why the reduced area is accompanied by the increase in velocity. Otherwise we have to take your word for it that A1 x V1 = A2 x V2.
Linear momentum is not conserved in the pipe taper. Volume in must equal volume out, thats what drives Qin = Qout
@@INTEGRALPHYSICSThanks.
How would you solve this if it was for a steady state mass flow of a compressible fluid?
little erratum at 6:44 : instead of "volume" be conserved, [more generally the mass has to be conserved, which for an incompressible fluid is equivalent]. Otherwise excellent course many thanks.
Thank you. You are absolutely correct.
😏🧠🌵 if you know what I mean
...I do not.