Bernoulli's principle 3d animation
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- Опубликовано: 23 окт 2015
- Bernoulli's principle 3d animation
This is an important principle involving the movement of a fluid through a pressure difference. Suppose a fluid is moving in a horizontal direction and encounters a pressure difference. This pressure difference will result in a net force, which by Newton's 2nd law will cause an acceleration of the fluid. The fundamental relation,which is known as Bernoulli's principle. This is very similar to the statement we encountered before for a freely falling object, where the gravitational potential energy plus the kinetic energy was constant (i. e., was conserved).
Bernoulli's principle thus says that a rise (fall) in pressure in a flowing fluid must always be accompanied by a decrease (increase) in the speed, and conversely, if an increase (decrease) in , the speed of the fluid results in a decrease (increase) in the pressure. This is at the heart of a number of everyday phenomena. As a very trivial example, Bernouilli's principle is responsible for the fact that a shower curtain gets ``sucked inwards'' when the water is first turned on. What happens is that the increased water/air velocity inside the curtain (relative to the still air on the other side) causes a pressure drop. The pressure difference between the outside and inside causes a net force on the shower curtain which sucks it inward. A more useful example is provided by the functioning of a perfume bottle: squeezing the bulb over the fluid creates a low pressure area due to the higher speed of the air, which subsequently draws the fluid up. This is illustrated in the following figure.
![Finesse2Tymes - Pretty Ricky [Official Music Video]](http://i.ytimg.com/vi/xIoP_mhYRT0/mqdefault.jpg)
Visual learning is the best!
Definitely sir
Yup
Then go with Byju's
Yeah you're right
@@sahilkasera5329 its the worst, iam premium user and I hate their content.
At the time of 2:21 there the Force at A is given by P1A1 but wrongly mentioned as P1A2. But other than that the video explains the concept really well. Thank you for your effort.
ruclips.net/user/shortsrVWzNtNHuRY?feature=share
ruclips.net/video/VsVKi_TrLhQ/видео.htmlsi=1Spxwm1j3pbrdEJR
This principal is used on a lot of printing press "infeeds" to blow air under the lead edge of an up curled sheet , generating the described "negative pressure " to suck the curl downward , thus drawing the sheet flat , allowing the sheet to travel under the headstops and into the swing gripper ... Works way better on paper than board though .
nice idea of your background music cause all the student keep watching of this video with their interest and whenever the video too long they will never bore of this type of video.
velocity at the first point will never be the same as the velocity at the second one as when areas decreases velocity increases
The smaller pipe is lifted so at a certain height it will have the same flow rate as the large pipe. Conservation of energy.. turn your garden hose on, lift the nose 10 feet into the air and tell me you don't notice a velocity decrease. Smaller cross sectional area will increase the speed, greater height will decrease speed.
same doubt i had
bt now clear thnk u....
I think the video is referring V1=V2 =V for volume and not velocity. The volume of liquid leaving A will be the same as the volume of liquid entering B.
Same doubt thanks for information
Are wo volume hi
Sir I want to know what is the difference between carnot engine in physics and chemistry
WE ARE GLAD ON THESE LECTURES
Browsed through your channel. Your content is awesome.. Keep it up mate..
Thank you so much for this video. This video helps me a lot
Thanks a lot man, this really helps me
when you speak you must finish the sentence!
Correct
when you speak you must finish the
@@haveyoutriedsettingittoWumbo 😂😂😂😂😂
12 ruclips.net/channel/UCgnq8tH5o-X3byKaMsuwqHAvideos
@@haveyoutriedsettingittoWumbo 😂😂😂🤣
YAY!!! now do Bernoulli's tube show how to make cold air without refrigeration tech
A = Area
P = Pressure
V = Velocity
g = Gravity
h = Height
m = mass
Correct me if i wrong
Latha Suresh thanks for that
Satrio Ari Wicaksono...
you are welcome :)
in case anyone needs help ruclips.net/video/ytCuHh5PwwY/видео.html .....this is bernouli's equation
Rho is also there
2:10
P1>P2
Is this some kind joke or any special theory
At 2:18 you said V1 < V2, how is it that V1 = V2 = V? and also considering the fact that pressure is greater at point 1 than at point 2?
friend,when they are talking about v2>v1,they are comparing the velocities about the 2 points,but when V1=V2=V,now, they are comparing the volume flow rates at 2 points,which is equal according to the assumption of no losses,i.e,equation of continuity.
they should have mentiond the meanings of the variables properly.
In V1 = V2 = V, V stands for volume. while initially it was velocity which should have been small v. Standard annotation is,
Velocity = v
Volume = V
They should have used another variable for volume flow. Like Q for volume flow
@@helifalic but work done is pressure X volume and they compared volume and no where did they mention that V is equal due to the potential loss
@@palavirajgude5717 her explanation was wrong in so many ways
That’s fine for laminar flow, what about turbulent? Friction and Eddie losses at the boundaries of the system?
There"s the rub. The main difficulty is in measuring the viscosity where Stoke"s equation comes into effect.The temperature of the falling values of viscosity, also comes into play.Here,presumably, the temp is taken at room temp.
Ideal fluid
How to do these type animations...i have some concept to present to my manager...wat are the softwares...any suggestions..
Dears Creative Learning
I would like to write the Spanish subtitles for your Bernoulli video. I am a physicist and a university professor. Would you authorize me to write the Spanish subtitles for it?
Thank you very much
Great animation! What software do you use?
3ds Max
Best explanation of the Bernoulli principles possible. Thanks.
You should clarify between velocity and Volume
Please make a video on magnetorheological and electrorheological fluid working plz
This is very good.Thank you very much,l remembered my universty days.l went thirty years ago
What is the name of university?
@@amandeepkumar144 at Uludağ Üniversty,Balıkesir Engineering Faculty.(Mechanical Engineer.)
12 ruclips.net/channel/UCgnq8tH5o-X3byKaMsuwqHAvideos
Please make more videos on topics of 11th and 12th of physics and chemistry.
at 2:22 correct eq. should have been --> force at point A =P1*A1 (and a clear nomenclature in all video would have been useful)
great visualization
Yeah, but what happens when you rectify the modulator?
nice video....but should have used standard terminology for variables...
Agree, confusing V (volume) with V (velocity)
This are the variables I was taught using
FADEL HANOUN you know V cant be volume when dealing with this because A is area. Your final units are m^3/s so it wouldn’t make sense to multiply area and volume and get m^3/s. Area X volume you get m^5 dont you? A (m^2) X velocity (m^2/s) gets you m^3/s.
Plus the V had a vector symbol on it which clearly cant be volume
@@Mrnoddingdonkey
Small v instead of V would have been more appropriated..
Nicely spaced phrasing. It almost sounds like a human is talking.
What application are you using for 3d animation
how could it be P2 > area and pressure have inverse relation
net works done by siphon at NTP and STP are what at it's maximum performance, or maximum work done by siphon are what?
How is net work done p1v1 - p2v2? It should be the sum, right?
Can anyone please explain why the net work is (p1-p2)V?
Where is the density in the final expression of the bernoullis equation?
Sir we know pressure=force/area , then if area is increasing , why pressure also increasing? I mean they are inversely proportional ryt
Never do all particles of a fluid travel along the same path as their preceding particle with the same velocity (0:03). That just doesn't happen. The particles move chaotically/in all directions, it's just that if the fluid is moving, there is a NET motion in the direction of movement, with most of the particles' motion still being chaotic (i.e. in all directions).
'Velocity' by itself is ambiguous, it could mean one of two things. It could be instantaneous velocity, or average velocity (displacement over some non-infinitesimal time period).
It cannot be instantaneous velocity:
The particles of static air at 300 K (~27 degrees Celsius) travel chaotically with an average speed of around 500 m/s (if you don't believe me, look it up!). Now, let's say that this static air is accelerated to this 'streamline flow' (0:03), where 'each particle has the same velocity', and let's say the new flow velocity is 5 m/s.
If each particle has the same instantaneous velocity and the flow velocity is 5 m/s, then each particle must have an instantaneous velocity of 5 m/s. No other value would result in a flow velocity of 5 m/s. This means each particle must be going in the same direction (direction of flow) and have a speed of 5 m/s. This would equate to a drop in speed from 500 m/s (static air) to 5 m/s (flowing air), a factor of 100. Thus, the average kinetic energy would have decreased by a factor of 100 squared = 10,000. Since temperature (K) is proportional to average kinetic energy (as shown by the equation KE(avg) = 1.5 k T, where k is the Boltzmann constant), then this would result in the temperature's decreasing by a factor of 10,000. 300K / 10,000 = 0.03K, which is colder than the freezing point of all air's gaseous constituents at standard pressure (even of helium). No such acceleration of air achieves this temperature drop.
So what about average velocity?
I doubt that 'average velocity' is what was meant, because of the statement that the particles 'travel the same paths as their preceding particles' and the fact that the animation shows particles moving with the same instantaneous velocities as each other. However, even if 'average velocity' is what was meant, it is still not true:
Since velocity is displacement over time, the particles can still be bouncing around mostly chaotically (as they do) and also have displacements over a non-infinitesimal time period: average velocities. However, for every single particle to have the same average velocity is a statistical impossibility. In reality, the particles will always have a range of different displacements after any given time, making up a distribution of different average velocities. Perhaps for some forms of fluid motion, most particles will have a similar average velocity over some values of time (IDK), but it will never be the same for all particles. Also, if 'average velocity' is what was meant, then the statement that all particles have the same velocity is meaningless, because the average velocity would vary depending on the time period over which it's calculated (this is due to the chaotic nature of the particle motion), and the time period is not given.
Ever heard of laminar flow?
Ever heard of approximations?
@@arxalier2956 lol I admit I belabored the point there.
That aside, to respond to your sassy rhetorical question, which you probably thought was clever at the time, yes I have heard of approximations and use them all the time, but as I showed very clearly before, the statement that all particles in a streamline move at the same velocity in streamline flow doesn't even come close to being approximately true. It's absolutely false. At best it's a lazy attempt at an abstraction that teachers use instead of explaining it properly, or because they don't understand it themselves, which I suspect is usually the case.
To make it less incorrect you'd have to define 'particle' to mean 'small sample volume of fluid' or something, but that would be misleading because that's not what a particle is.
A true statement/definition would be something like: 'the velocity of the fluid at every point along the streamline is approximately the same'.
It might seem pedantic, but the statements are vastly different.
@@sidharth5746 yup.
Given the context, this rhetorical question seems to imply that laminar flow is by definition a flow in which all particles along a streamline have the same velocity and that therefore I'm incorrect in saying that this is not true.
However, that's not what laminar flow is. Lamina flow is when the fluid is moving at the same velocity at all points along a streamline, not when all particles are moving at the same velocity along a streamline.
I've showed that the latter is impossible with the relation of the kinetic energy of a fluid's particles to the fluid's temperature. In 5m/s flow, for example, if all particles were moving at that velocity or similar velocities, the 'fluid' would be at less than 1 Kelvin. That is obviously not what happens in 5m/s laminar flows IRL, and therefore the claim about equal particle speeds is false.
@creative learning
Which software you use for creating animation
Does this apply to air as well? And what happens if the shape of the tube is not cylindrical, or actually asymetrical?
Veraux This explanation does not apply directly to compressible fluids like air. For air the equations become quite complex and for asymmetrical tubes there may not even be equations. They probably have to be solved using computational numerical methods.
The shape doesnt matter as fluid is considered a constant, well water atleast. Bernoullis principle will still apply.
Tho it is recommended to use a cylindrical tube as other shapes will wear and break faster.
Please create a video for Reynolds no and viscosity or open channel flow like this
What is the effect on temperature in bernauills therorem
Zohab Ali Increased pressure in the smaller end increases temperature. It's how refrigerators work.
mass conservation (m,in = A1rho1v1 = m,out = A2rho2v2) isnt really bernoullies principle, energy conservation is though (p on a streamline = const.)
what is the backg music ? its very nnice. plz tell the name of the music
This principle only applies for streamline flow
No. Only for ideal liquid bro...
@@amanrchaudhary587 iikkoiikkik
@@amanrchaudhary587 télécommunications ji kkkikkikiik
how v is same in both cases
Eswar Rao liquid is considered tobe ideal
Bibek Panday
.
For an idea liquid, the density is the same at A1 and A2, so we have A1V1 = A2V2 (1:20). But later she says the velocity is the same at V1 and V2. How is this possible is A1 is not equal to A2?
correct, the actual statement is...since A1>A2, so v1
First the use capital V for velocity and later for volume which is very confusing.
Thank you
still didn't get anything
Ha 😂 this video can't help me for exam bro
ikr, they all just keep repeating the same thing: "It is what it is, because someone said so"
Haha
12 ruclips.net/channel/UCgnq8tH5o-X3byKaMsuwqHAvideos
Nice animation. However, please at 51 second, correct the formula to read Mass = Density x Area x Velocity. It is a Typo. Also the same for Mass at point 2.
I’m confused
Thanks sir our concept became clear
Thank you.Nice Animation
i didnt understand, if there is no loss of water it can be possible that amt of water entering "PER SECOND" may not be equal to the amt of water leaving "PER SECOND" . plzs someone explain im really struggling with this.
Rajkumar Rai imagine a water hose and u block the exit of the hose with a finger. The velocity will increase as water exits but the volume of water will never change (its constant), unless there is a leak in the hose. This video is confusing as the letters are velocity and volume lettering are wrong but the video itself is not bad.
Please make more videos on fluid mechanics
What is the name of the background song/music/tune? thank you...
The Name is Music
The name is the song
So,velocity of B is greater than the A its ryt?
Yes
WHAT SOFTWARE IS USED FOR THIS ANIMATION
should have mentioned that the p in the first example and P in the second example is density and then pressure respectively.
Drop a comment ...who are watching the video before 1 hour of exam😅😅
1 day bro
2:22 isn't that A=P1.A1 ? And at 3:13 isn't it P in place of P1 in the final step?
Well simplified tho thanks.
Good effort but should have mentioned what the alphabets mean
exactly brother
seriously???
Jejejejeje
V = volumetric flow rate, v=velocity. Big difference.
something like p (smoother version of p, it's called rho) is symbol for density
Upper case P or just big P is for Volume, the lower case p is for velocity
Pressure=force by area
F=ma
Then pressure is directly proportional to velocity ....and inversely proportional to area
So,asA1>A2
P1
I also have same doubt
One mistake. Force of the liquid at A =P1A1 instead of 'P1A2' which is wrong.
Great help!🙂
had an ad for reducing plastic waste but featured them making and using plastics to do so... kinda like fighting fire with fire
Which is software used to create this
Great animation!
When you speak you must never have an AI narrator!
Great .Thanks a lot .
When fluid flow in a divergent path .. pressure increases velocity decrease
(Smaller diameter to bigger diameter of tube)
LIGIN CYRIL it's true btw are you asking or telling?
It is mess with notations- at the first V was velocity and at the end it became volume
Giedrius K V in physics always stands for Volume and v for velocity. See the difference? The videos explanation is janky.
So he/she is referring by v1
How does the water flow from pipe to pipe and not fall ?
this was the easiest explanation ever for bernoullis theorem
Are you saying “network done”?? I tried 8 times but no idea. Why not just speak your native language and subtitle the vid?
ikr this is weird
Force at A P1A2 how?
Please put videos in playlists
Well explained thank you
Amazing video ❤️
MADAM WHAT SOFTWARE ARE YOU USING FOR ANIMATION WHICH WE NEED FOR OUR PROJECT
There is an open source software called Blender3d
Its free and an amazing software for such videos
Strange formulas A2 = p2A2V2. I read it as A2 = p2 * A2 * V2, but how this can be true?
I'm building myself a small dam to calculate the rate of water flow to turn a turbine to generate 100kWh of energy each day.
We discuss about pressure it is inversely proportional to area but why it is vice in fluid mechanics
Simple air deflection, case closed.
I just searched up 3D animations to get some ideas, didnt mean to run into this video, Im way too uneducated to understand half of this, i get some of it, but she lost me with that paragraph of math
Obrigado pela ajuda para hidraulica
Nicely Explained.
My question after I saw all of these !!! who am I??
You said V1 < V2 . Then you said V1 = V2 = V . How could be this ? !
Great effort
Will pressure be the same at both the ends ?
No
Excellent video madam..with ur permission i wil use to demonstrate my students...for education use...
Which software is used for animation
Thank you
RIYAS V autodesk 3ds max
We know that pressure equal to force by area as area decreases pressure increases.how the pressure drop occurs
Narsimha Kapoli 'cause of elevation.
This is super smart stuff that I can't understand... But... Sounds interesting!
Why is V1=V2 as it goes up hill?
Please write about siphon technique
music is distracting, and pop up annonations are annoying but a good video overall
you have a beautiful voice.
it was great helpfyl video many thanks
If flowing inside air what will happen
Need formula for friction loss in header ?
given data
length of pipe =100m
Discharge = 283.2 m3/hr
pipe dia = 0.2m
velocity in pipe = 2.51 m/sec
friction losses = ?
Nice animations 👌👌👌
How about getting A- 1 and V2 to flow some beer to my house.
LMAO 😂