Venturi Meter Problems, Bernolli's Principle, Equation of Continuity - Fluid Dynamics

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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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14 окт 2024

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Комментарии : 79

@TheOrganicChemistryTutor Год назад

Next Video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HsgZM2TXXy4.html Final Exams and Video Playlists: www.video-tutor.net/

@LinaOukil-wu5br 6 месяцев назад

THANK YOU SO MUCH FOR THESE VIDEOS ,UR A LIFE SAVER

@Chivende 6 месяцев назад

Your voice is magical 😅😅😅😅...i wish all lectures were this calm..and the content is amazing, everyone gather here😊😊😊

@Shackled 4 года назад

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.

@LinaOukil-wu5br 6 месяцев назад

THNKS IM USING A SIMILAR METHOD WITH DIFFRENT SUBJECTS AND IT WORKS AMAZINGLY

@truth4513 6 лет назад

waoh i really enjoy how you explain things unlike my fluid lecturer he makes me want to run

@POLISNecro 7 лет назад

Thank you so much. Will it be possible to see one with head losses calculations please?

@VinurjanSriramanan Год назад

Thank you so much from france i didnt found a video about venturi in french u help me alots thx u

@Channel1212ful 3 месяца назад

you're a wealth of knowledge

@biakmuantonsing381 3 года назад

Keep it up..the moment I watch..I do not need a tutor cuz this online explanation is much better..nice.imparting.

@anaknadiem Год назад

Matur nuwun gih, mas🙏🏻🙏🏻

@gregroth4696 Год назад

Love this. Lost me right at the end. I'm applying this to a social formula. Thank you.

@syamilnazri7440 4 года назад

i almost do a dark spell to my lecturer until i found your video.. thanks so much

@mohsaj7652 2 года назад

wtf

@ongka2000 5 лет назад

This helps a lot! Thank you.

@angelluisgarciaguzman5598 4 года назад

When you will finally put your mic to max?

@JeromeNyamekye 3 года назад

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

@brandonduong Год назад

It's given

@madeline8968 5 лет назад

You. Are my hero. For real.

@didiruhyadi4798 6 лет назад

Thank you so much. keep make the lesson video, it's very help me axe final exam

@jorgemercent2995 5 лет назад

I am hesitant about calling P1-P2 Delta P, because change is always final minus initial

@TheSenseiKai 4 года назад

I guess you could use the absolute value of it ,then to make things simpler for you.

@StreuB1 4 года назад

Not always. In this case, it will actually be an indicator of flow direction if that was not already known.

@sccm100 3 года назад

Right!

@sparshsaxena3519 3 года назад

This channel is a boon for JEE aspirants in India like me who cannot understand concepts from books.

@alish5417 Месяц назад

i.imagine it as a baloon when we pressurize it and rap the outlet but only let a tiny bit of air to escape ,the speed of the gas when its outputed to the other side ,its velocity dependent on the source pressure of the cylinder ,or storage tank

@raphaelaja02 3 года назад

great explanation, really helped me !

@bryanarevalo3306 День назад

Why is the pressure at B smaller? Wouldn't it be greater due to having a smaller crossectional area at point B?

@Freakybananayo 4 года назад

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?

@ericgibson7889 4 года назад

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.

@sparrow1177 3 года назад

Thanks a lot....got a lot og info. Important for my JEE

@anilsharma-ev2my 4 года назад

Relatives velocity in space formula is like relatives of venturi effects formula 🥂

@zc8778 3 года назад

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?

@zc8778 3 года назад

Could you induce as much as say 1/2 the constant volume in through the venturi?

@pcakshaya4292 4 года назад

thanku so much it was so helpful :)

@SaritaKumari-16 5 лет назад

Hugs from India 💜

@chrisdaniel1339 6 месяцев назад

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.

@alish5417 Месяц назад

the speed must be slower in yhe bigger portion of the pipe but when it reaches the narrow spot and gets out to another place similar to the first pipe or doesnt matter but it has to go though this process to drop its tempreature ,its all about dropping the temp ,by jettjng it from a narrow jet ,but the velicity of the gas beibg sprayed or jetted ,is relative to the inside pressure of a closed system ,to open system ,or atmospheric pressure,this is applied to steady cold ,the colder the better ,the whole refriregeration idea is about getting the heat out of the system ,or place ,it has to do with pressure of vourse but the primary work is making a way by means of maniplulatig pipe diametrs and leghtes ,if any source of heat is intruduced ti an AC OR REFRIGERATION system the balance will be lost ,the normal working way of these systems ,keep heat away .

@senithadabare8944 Месяц назад

thnaks lot

@niloofarkh4779 4 месяца назад

thank u so much

@speedmax0367 2 года назад

Thanks you so much

@LukaŠtih Месяц назад

what if the water level at point B was higher than A, wouldnt then p1-p2 be negative because p2 would be larger than p1, would then delta p be negative or? thats the only part that confuses me

@Albi91vl Год назад

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

@shobyanto6635 6 лет назад

Nice presentation

@steffinatalie 3 года назад

Thanks

@amazingdeen6734 6 лет назад

Thanks Sir!!!

@markalbaytar 5 лет назад

where did that 1000 came from sir? I'm so confused rho=1000?

@roniemedel6148 5 лет назад

density of fluid in the venturi meter on this case he uses water

@ninisanjay6638 4 года назад

Yes

@jaydipbhattacharya4322 11 месяцев назад

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

@ozgurkacmaz8 Год назад

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 ?

@ninisanjay6638 4 года назад

Thanks 😊

@mylobage 5 лет назад

I still don’t understand how you changed the pressure of the whole system, and equated it to pgh.

@Alireza-fs3ur 4 года назад

The fluid has a certain pressure at the 2 points, P1=ρgh1 P2=ρgh2 dP=ρg(h1-h2) => dP=ρgdh

@ΑλεξανδροςΠλιατσικας-β9σ 2 года назад

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 )

@Attalla-t9b 4 месяца назад

Nice

@blameboredom9227 Год назад

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)

@spacespaceradio6514 3 года назад

Is the velocity V2 the same as the velocity at point c?

@tonyn300 3 года назад

why is change in pressure p1-p2 rather than p2-p1

@AmirIkhwy 3 года назад

Question how to find Z1-Z2 ? Explain please

@lyricslord947 4 года назад

U didn't change the areas from cm to m when working...check it out

@yasharaltay2766 5 лет назад

how does the increase the venturi effect?

@Cdawg_6969 4 года назад

How do you find the height different in the water tubes

@ninisanjay6638 4 года назад

It is given

@RealEstateWomdersTV 2 года назад

What about V2?

@thegreatnormad3424 4 года назад

My lecturer use different formula ! What's going on

@doriswilliams167 5 лет назад

At 8:36, is that supposed to be a "p" or a row = 1000? i am confused.

@abram3rdking292 5 лет назад

rho

@markalbaytar 5 лет назад

Im thinking about that too where did that come from

@JellyScrub 5 лет назад

@@markalbaytar rho is the density of water at 1000kg/m^3

@sonicdewd 2 года назад

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.

@sudharanis7616 4 года назад

Isn't that flow instead of velocity

@hying3838 4 года назад

hi, can you speak louder, cause my computer speaker has reached 100 and is still very soft.

@robsomers3279 5 лет назад

you sound exactly like mark wahlberg

@eqisoftcom 5 лет назад

So, where are the "problems"?

@franciscorussela.8663 5 лет назад

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😂

@roniemedel6148 5 лет назад

Thank you so much