How A Jet Engine Works

[MrJeeperz]

wrong!



[LucasGamaleri]

it haven't a fan, isn't a turbofan. its only a jet engine, you must explain them

[AnotherGlenn]

Really bad explanation. Sucked into the engine? Engineers should not talk like that. The exhaust cone increases the pressure? I thought it was to increase velocity. Pressure goes down as velocity increases. Yes/no?

[iLoveEatingPie]

Was this rendered with a Nintendo 64 or something?

[Dim4ik2008]

I would love to get this engine 3d version for working on it. is it possible you send me one ?

[Zerecese]

"Some of those gasses spin the turban" Was this engine built by a Sikh?

[DrVitoti]

this is not a turbofan.... there is no fan in here.....

[SilentShooter53]

A jet engine works on much the same principle as politicians, they suck and blow.

[legacysage]

So... I imagine there is some electric motor that starts this process by turning the bar that all the turbines are connected to, which would result in the initial air intake which would then be mixed with fuel, ignited, and run past the other turbines returning some of the power back to the shaft, making the engine self sustaining after that point. Then they just control the speed through the air/fuel mixture?

[Sweetassour]

made with potato studio fx on toasters 95

[kaan898]

need a decoder to watch it properly...

[Gears182]

@kaan898 hahahahahah

[PashtunFuckzai]

stupid misleading

[RidingSausage]

made in windows 98

[flipper2562]

@RidingSausage maybe windows 95

[SPLATYURFAICEINlol]

recorded useing the most advanced calculator/camera-but-mostly-c­alculator technology

[jeanlucncoelho]

Thats not a turbofan its a turbojet

[gocartsgo]

lmao turbin

[MrJohann64]

This is not a "turbo fan" but a jet engine, the narrator said turbo fan at the beginning, then show a jet engine, then shows animation of turbo fan at the end of the clip on a plane. This video should be corrected or removed.

[bouldercrotch]

A gif could do a better job than this video...

[ItalianStallion5454]

Is this the dude who tells me that my safety mask may not inflate?

[DrSalvador4]

so the white stuff goes in, then a fucking tsunami appears inside the chamber 0:20 and because its a tsunami it knows it should not be in a jet so fights to get out, so it starts a tsunami revolution, hints the two twisting things, the tsunami up rising allows many young tsunamis out the business end but some are traped on the way out to feed the system in a loop inspiring an uprising in the new younger storm systems yet to come.yep that what i got from this animation, seems perfectly viable

[210482fmj]

it would be better to see it explained with a real model engine. this is not detailed enough. I want to see it in exact precise detail including every moving part.

[galatasaray710]

i totally knew how a jet engine worked before i watched this video. now im confused

[AgentJayZ]

Incorrect.. the fuel is not vaporized.. Small detail

... Big detail:

The nozzle does not increase pressure of the exhaust gases.. it does the exact opposite: it converts the pressure of the exhaust into velocity. It is this acceleration of the exhaust which gives rise to the forward force, or thrust on the airframe.

Remember: Force = Mass X Acceleration.

Thrust = Force

This video was created without any understanding of its subject...

[shamalot44]

@AgentJayZ well technically it does increase the pressure because the gas is going from a larger volume to a smaller volume.. And because of this pressure change the gases must accelerate to get through the smaller volume

[RaZeRx09]

Wheres the option for 720p?

[Dhairyasd]

Yeah, this video tells nothin it's really junk!!!

[Huru1982]

This video is junk and explains nothing.

[ghettoperson257]

that was boring

[VictorSeedorsky]

@rendermedia i still dont understad sir.. I mean - i know that the gases thrust pushing plane forward but what the hell is starting this huge turbofan to rotating at the begining...????!! Still dont get it... there is an

[t3hPoundcake]

I lol'd. Hardcore.

[pcdsgh]

@t3hPoundcake me too

[FlyingSnake110]

It explains how turbine jest engine works, NOT a turbo-fan engine.

In turbo-fan engine most of the thrust comes from a fan, which acts like a propeller (most of the air is released before final compression, and combustion chamber).

[XboxGamer43]

"some spin the turbin" lawllll

[insylem]

They said it was a TURBO FAN, yet they explaned a turbojet.

In a turbo fan, the exhaust gasses out the back, hit another turbine, that spins a fan up front. Most of the air gathered by the fan up front bypasses the engine and is used for thrust, the rest is drawn into the compressor. Approx 80% of the turst of a turbo fan comes from the fan, or bypass air, the exhaust makeing up 20%

[jumpmaestro]

brilliant explanation - simple!

[MKTpilot]

I cant even focus on the information because I was rubbing my eyes the whole time...

[dcsilva10]

if u have a 32mb graphics card reconsider your dream fo being a 3d animation engineer

[makinamati]

weredid you get this from?

[YouLoseTheGameOo]

wow ATARI anyone???

[Benjimindle]

he says gazzes and turbin.... this guy has no idea what he's on about.

[GameGuideSite]

what the hell did u make this with?

[Lunarlaserranging]

i cant find a video showing how a jet engine works that shows real actual footage of a jet engine. Its difficult to get a full underastanding from animation as opposed to viewing the real things.

[cpu64]

Wow, these graphics suck!

[SnoDraken]

The three types of common combustion chambers are;

1. Can, Individual combustion chambers for each fuel nozzle.

2. Annular, one big combustion chamber for all the fuel nozzles.

3. Can-Annular, bunch of cans surrounded by a larger can.

[nickabokka]

some jets have combustion chambers and some have one big one? is that right or is this just a bad animation?

[23hublock1]

@markyyyyyyyy321 So you are a Rolls-Royce apprentice engineer? And what a fine example you set for the company. I'm sure you are a shining star in British engineering. Not.

[markyyyyyyyy321]

I've removed the comment if it makes you happy.. So you think because I'm an Apprentice I can't have my opinion on this rubbish video? It's alright thinking "Rolls-Royce" believe me we are not all geeks you know we are highly skilled engineers and I'm having world class training so I don't care what you think about me, I stand by my opinion on this vid it's crap. And just to let you know 2200 people applied for an Apprenticeship only 60 of us get a place so I don't care what you say.

[23hublock1]

@markyyyyyyyy321 Nice one, well done. I just don't think that swearing and Rolls-Royce and an apprentice should go together in public. Best of luck with your new career, and I'm sure you will do well. Regards, Matt.

[markyyyyyyyy321]

@23hublock1 Matt, I agree with your opinion on my bad use of language sorry about that, I shouldn't of swore. I grew up on the street but it's no excuse! It just annoyed me when watching this vid. Thanks, Mark

[Accumulator1]

Animation flunks, so does the presentation.. A turbofan has a secondary flow called a bypass flow that remains non-combusted. One would think that the convergence of the air would compress it thus increasing pressure. But as long as the opening design allows the velocity to increase within, the pressure will decrease. Google - Bernoulli effect . Same effect that allows the plane's wing to lift.

[PleasureTV]

I would title this video "How A Jet Engine DOESNT Work"

miss guiding nonsense

[Malcolmiix]

oh yeh man!! realy it doesnt fucking work!!

[PleasureTV]

Thx Malcolmiix, I agree realy it doesnt fucking...!!

but I disagree with some your views.

Feel free doing whatever you want with your life and don't mess up with others

We don't have tribes in Europe.

[05u16hep]

Um, this is a turbojet engine, not a turbofan... A Turbofan ( high bypass) has a fan disc at the front to bypass air around the engine whereas a turbojet dous not have this. this video is very misleading, but still good :-)

[vanepico]

spins the turban 'ey?

[Adrianrff]

There's a big error in the video. The nozzle does not increases the pressure, quite the opposite. It converts the pressure energy (provided by the compressor) into speed. So it DECREASES PRESSURE and INCREASES VELOCITY. The velocity is what provides the thrust. (Big change of momentum).

Unless the gasses travel at supersonic speeds, a CONVERGENT NOZZLE (as shown in the vid) will always decrease pressure and increase velocity, if it is supersonic however, a divergent nozzle must be used.

[ikweetnietook]

This is the second video that uses the laws of Newton to bad both video's are verry short. I want to see more.

[Junkeeman84]

loox more like a simple turbojet to me. rather than a turbofan.

[lsjbtedi]

very nice video ! simple and easy to understand

[Adrianrff]

Very wrong though. Do not learn from this

[robertgift]

Horrible animation.

Fail.

[fannoj]

@robertgift animation seem "ok" just the quality is low.

[WinstonBroderick]

@robertgift Hundreds of Microsoft Paint images in a fast slideshow.

[robertgift]

@WinstonBroderick Another criticism is the misportrayal of the flow inside the combustion chamber.

It does not circulate forward as shown.

[xXFocusRecord]

@robertgift And then he insults us by giving newton's third law, trying to sound smart,"every action has an equal and opposite reaction".No shit I still dont understand wtf is going on in this vague ass video. GTFO, LOL!

[erikinhawaii]

This is what I learned in flight school.

SUCK - SQUEEZE- BANG and PUSH

[MetaView7]

only 50 sec?

[JozeyHall]

that would be pretty inefficient to make the blades spin faster than the air it actually is sucking in, like a mach 1 the fans would spin at like 400 000 rpm to make the air compressed wouldnt they

[thinazzabird]

that newton- he sure indeedilidwuz a smart one!

[RedEyeKiller22]

this video was low quality graphic...

[meandmyevo]

WHAT??? It's not low graphic!! It's "classic" like 8 bit Mario Bros.!!

lol

[deaftodd]

That design looks very wrong!

[hammettallica45]

ur wrong

[deaftodd]

How can you be so sure? Stator vanes are not supposed to turn. Plus the compressor don't compress three times on a single shaft. Too many more errors.

[hammettallica45]

But what type of Jet engine are you thinking of?

[JozeyHall]

its logic mate, get used to it... if it works it aint wrong

[smartzazi]

How the comprossers at the beignning work.. i mean before hot air comes out and moves the nozzles?!

[megabowzer]

i think theres some sort of electic motor that spins the compressor to draw the air in..then its mixed with the fuel,then the fuel mixture is ignited in which case,the fuel/air mix takes over and the electric motor is switched off....

[JozeyHall]

wouldnt they pivit each individual blade so at low speed its almost perpendicular to the aircraft's moving direction and at high speeds its almost straight if you get what i mean...

[jaksupra]

Like a constant speed prop? Variable pitch haha

[JozeyHall]

yeh, why not, dont they use them in speed boat props

[1986supernova]

if the blades were pivited then at high rpm the blade would cause a wall resulting in a blockage meaning less propulsion, thats why all the blades are in a set position

[salemcripple]

What? If you're asking how they start a jet engine. Some use electric or hydrolic on board motors to start the process. While allot of them use whats called a "huffer". Which is itself a small mobile jet engine. To literally "blow" or "suck" air through the engine, which gets the turbine turning, starting the engine.

[meandmyevo]

powered by very high power electric starter motors.

[Adrianrff]

The compressor is initially moved by an electric motor, after this, some of the energy of the hot gases is used to rotate a turbine which is connected to the compressor. The remaiming energy provides the thrust (hot gases shoots out the nozzle). By the way, the nozzle does not move, it's just a convergent tube that increases the velocity of the gases and DECREASES PRESSURE, it does not increase it, as the video mistakenly points out

[totitooti]

How Jet engines work without graphic card !

[aaahhhhaaaahhhh]

what the horrible he must need a better graphics card...enable !antialiasing and mipmaping!!

[H1tman47]

uhm guys i cant get one thing, air should flow from higher pressure to lower, after burning of fuel the gases become hot, thus the pressure rises, and i dont get why do all these gases flow throu the turbine and dont go backwards to compressor?

[alphacn6]

It is true that air flows from higher pressure to lower pressure in order to maintain equilibrium.... but think about it, which way has less pressure. It can either go back through the "high pressure" compressor or the lower ambient pressure of the exit nozzle.

[transparentreality]

if the compressor input pressure into the combustion chamber is higher than the combustion chamber's pressure, it all goes out the exhaust. Gas has mass and inertia and that helps too.

[H1tman47]

thanx man, that explains everything, i had such idea, but i thought that compression ratio of 1:60 could not create enough pressure, now i get it :D

[Adrianrff]

Actually, the burner does not increases pressure significantly. I think what may be confusing you is that the video has an error, it says that the pressure increases as it goes through the nozzle which is false. The nozzle DECREASES pressure and increases the velocity of the gases (that's what provides the thrust as it changes it momentum rapidly --> Newton's second). the reason why the gases dont go back is due to the inertia. But it may happen, and is called SURGE PHENOMENON

[michael55443332211]

does anynoe know what powers the turbine (steemn pistons ect)?

[daveinsd]

It's a turbo-jet, not a turbo-fan, because all the air goes through the combustion area and is mixed with fuel and burned. A turbo-fan has some amount of bypass, where fresh air pulled in by the first fan stage goes *around* the combustion area, and mixes with the hot exhaust past the turbine. It's a lot more efficient that way, in a whole handful of ways.

[corotor12345]

yes... it isnt a turbofan lol.

[terrafirmajets]

What is a Gradual pan? there is certainly nothing in Any sort of engine be it turbojet turbo fan turbo shaft turboprop athoyd nope nope nope. A convergent nozzle decreases pressure and increases velocity unless that nozzle is sonic choked at which point the laws reverse....the commentry is incorrect.

[13101987]

i think that nozzle increases velocity of air not pressure because pressure is increased already by compressor

[Adrianrff]

True, this video is wrong in many ways. The nozzle decreases pressure and increases velocity. Unless the gases are traveling at supersonic speeds a convergent nozzle will deacrease pressure and increase velocity.

It would be useless if the nozzle increases the pressure, because by the conservation of energy the velocity must decrease, therefore, decreasing thrust.

[dannepanne87]

bad bad bad quality!

[lukelti]

Your commentary describes a turbo-jet rather than a turbo-fan.

[w00t692]

It is a turbo fan jet engine...

[w00t692]

It's a combination of both. it has the turbo fan with the inner turbo jet.

[giulianopietra]

Interessante!