Venturi Meter Problems, Bernolli's Principle, Equation of Continuity - Fluid Dynamics
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- Опубліковано 15 лис 2017
- This physics video tutorial provides a basic introduction into the venturi meter and how it works. It's a device used to measure the velocity of a fluid in a tube. It works by changing the cross - sectional area of the pipe to cause an increase in fluid speed which leads to a reduction of pressure which can be visually measured due to the height difference in the two columns. This video explains how to derive the formula that can be used to calculate the fluid's velocity on the left side of the meter using bernoulli's equation. The flow speed in the throat can be calculated using the equation of continuity and the difference in water pressure can be calculated using the gauge pressure formula for fluids or using bernoulli's principle. This fluid mechanics video contains all the formulas and equations you need when dealing with physics problems involving the venturi effect.
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THANK YOU SO MUCH FOR THESE VIDEOS ,UR A LIFE SAVER
Your voice is magical 😅😅😅😅...i wish all lectures were this calm..and the content is amazing, everyone gather here😊😊😊
For anyone having issues with this one, do this. Just watch it through once and write down everything a long with him. Then just attempt to derive that first equation by yourself without looking and only refer back to your notes if totally stuck.
Then watch it again and talk along as if you are discussing it with him and look at your notes. Lastly, take a short break and then come back and watch it at double speed and comment along with it. You will be amazed at how much you have learned in the short time.
The rest will be cake.
THNKS IM USING A SIMILAR METHOD WITH DIFFRENT SUBJECTS AND IT WORKS AMAZINGLY
This helps a lot! Thank you.
Thank you so much. Will it be possible to see one with head losses calculations please?
Thank you so much. keep make the lesson video, it's very help me axe final exam
waoh i really enjoy how you explain things unlike my fluid lecturer he makes me want to run
great explanation, really helped me !
Keep it up..the moment I watch..I do not need a tutor cuz this online explanation is much better..nice.imparting.
Love this. Lost me right at the end.
I'm applying this to a social formula. Thank you.
Thank you so much from france i didnt found a video about venturi in french u help me alots thx u
You. Are my hero. For real.
thanku so much it was so helpful :)
Nice presentation
Thanks Sir!!!
how does the increase the venturi effect?
Is the velocity V2 the same as the velocity at point c?
Nice and a wonderful explanation..... However, I went through the calculations but I did not understand how you calculated the area of the diameters of the pipe and the venturi. Is there any explanation to give to that please
It's given
what would happen to the pipe if the speed at point B surpasses the max speed(with max speed being the speed that makes H2=0 )
you're a wealth of knowledge
Matur nuwun gih, mas🙏🏻🙏🏻
Question how to find Z1-Z2 ? Explain please
Could you tell me, is there a ratio for the most efficient venturi of how much you have flowing in to how much is added via the venturi?
So if you have a constant flow rate and constant pressure in say of 10bar air passing through, how much in comparison could be drawn through?
Could you induce as much as say 1/2 the constant volume in through the venturi?
if there is no difference head ( i mean if the 61.2 cm is doesn't there), how to calculate V1 ? if h be equal to zero, what should i do ?
Thank you so much
Good video. I'm confused why the p2 would be less than p1 though. The level of the liquid in the 2nd tube is lower so how come it hasn't got more pressure?
The pressure of a venturi meter is always lowest at the throat, where the flow speed is the greatest. The level of the liquid is lower because there is less pressure pushing it up.
Hugs from India 💜
i almost do a dark spell to my lecturer until i found your video.. thanks so much
wtf
Thanks a lot....got a lot og info. Important for my JEE
I am hesitant about calling P1-P2 Delta P, because change is always final minus initial
I guess you could use the absolute value of it ,then to make things simpler for you.
Not always. In this case, it will actually be an indicator of flow direction if that was not already known.
Right!
Relatives velocity in space formula is like relatives of venturi effects formula 🥂
Thanks 😊
When you will finally put your mic to max?
Thanks you so much
This channel is a boon for JEE aspirants in India like me who cannot understand concepts from books.
How do you find the height different in the water tubes
It is given
why is change in pressure p1-p2 rather than p2-p1
Thanks
where did that 1000 came from sir? I'm so confused
rho=1000?
density of fluid in the venturi meter on this case he uses water
Yes
I still don’t understand how you changed the pressure of the whole system, and equated it to pgh.
The fluid has a certain pressure at the 2 points, P1=ρgh1 P2=ρgh2 dP=ρg(h1-h2) => dP=ρgdh
how on earth did 1/2 minus 1/2 became 1? , I can't hear the video clearly , you said if we factor 1/2 rho v1 squared you have 1? (4:27)
What about V2?
thank u so much
At 8:36, is that supposed to be a "p" or a row = 1000? i am confused.
rho
Im thinking about that too
where did that come from
@@markalbaytar rho is the density of water at 1000kg/m^3
That's really the only thing that I could pick on (not here to pick on this presentation) but rho should be written as a Greek rho character, not as a 'p' like he did.
U didn't change the areas from cm to m when working...check it out
My lecturer use different formula ! What's going on
Nice
I thought the video was about a problem (a flaw) in the Venturi metering system. The title of the video was totally misunderstood by me
you sound exactly like mark wahlberg
Isn't that flow instead of velocity
If you did not cancel the rho*g*h terms and kept h1 and h2 , and eventually h = h2 - h1, it would be much easier to understand
I did extremely well in college algebra, but these are some intimidating equations and calculations. Yikes! I have not done any algebra in nearly a decade and a half. If I continue with my next college degree I will be required to take chemistry and I am so out of practice when it comes to solving algebraic equations.
hi, can you speak louder, cause my computer speaker has reached 100 and is still very soft.
So, where are the "problems"?
7:29 when uou've calculated the v2 you take the area as 10cm^2 and 5cm^2 then you've come up with 4m/s?
EDITED:
oh i get it you've just cancel the cm^2 unit😂