Wings and Spoilers; Lift and Drag How It Works
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Date: 2019-10-24
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Comments and reviews: 10
The Domikonis
STOP TALKING ABOUT BARNACLE'S PRINCIPLE. IT HAS NOTHING TO DO WITH LIFT GENERATION. THIS HAS BEEN A MYTH FOR TOO LONG. Wings are newtonian in nature and super duper simple If you push an object through air and that air gets pushed upwards, then you get downforce If you push an object through air and that air gets pushed downwards, you get lift You don't even need a special shape to do this You just need to deflect the air in a direction The reason wings look the way they do is simply to minimize separation of fluid from them to maximize the amount of air they deflect This is why when you stick your hand out your car window and rotate your hand, your hand will get pushed up and down Look on the wikpedia pages for Lift and Bernoulli's principle and you will find: An airfoil generates lift by exerting a downward force on the air as it flows past. According to Newton's third law, the air must exert an equal and opposite (upward) force on the airfoil, which is lift. [13][14][15][16]. All bernouli's principle states in the scheme of this is that the flow must change velocity and thus must change pressure. That's it I even saw a damned exhibit for this at a MUSEUM saying this is how airplanes fly IT ISN'T When you turn on your ceiling fan, it's pushing a wing through air that's shaped to push air downwards which creates lift as a byproduct
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STOP TALKING ABOUT BARNACLE'S PRINCIPLE. IT HAS NOTHING TO DO WITH LIFT GENERATION. THIS HAS BEEN A MYTH FOR TOO LONG. Wings are newtonian in nature and super duper simple If you push an object through air and that air gets pushed upwards, then you get downforce If you push an object through air and that air gets pushed downwards, you get lift You don't even need a special shape to do this You just need to deflect the air in a direction The reason wings look the way they do is simply to minimize separation of fluid from them to maximize the amount of air they deflect This is why when you stick your hand out your car window and rotate your hand, your hand will get pushed up and down Look on the wikpedia pages for Lift and Bernoulli's principle and you will find: An airfoil generates lift by exerting a downward force on the air as it flows past. According to Newton's third law, the air must exert an equal and opposite (upward) force on the airfoil, which is lift. [13][14][15][16]. All bernouli's principle states in the scheme of this is that the flow must change velocity and thus must change pressure. That's it I even saw a damned exhibit for this at a MUSEUM saying this is how airplanes fly IT ISN'T When you turn on your ceiling fan, it's pushing a wing through air that's shaped to push air downwards which creates lift as a byproduct
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Andrei Raducanu
Thanks for the great vid, but i have a few questions: 1) 7: 00 Why does the lift effect happen just on the rear? 2) regarding he splitter: if you have more air underneath the car, and the air has less to travel underneath it than above it, wouldn't that make the air move faster, thus creating lower pressure, thus creating negative lift? 3) I don't really get how the air travelling underneath the car is faster then the one on top of it (thus creating negative lift, even with all the design adaptations, since there is a lot more travel distance for the air to travel on top than below (which is pretty much in a straight line)
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Thanks for the great vid, but i have a few questions: 1) 7: 00 Why does the lift effect happen just on the rear? 2) regarding he splitter: if you have more air underneath the car, and the air has less to travel underneath it than above it, wouldn't that make the air move faster, thus creating lower pressure, thus creating negative lift? 3) I don't really get how the air travelling underneath the car is faster then the one on top of it (thus creating negative lift, even with all the design adaptations, since there is a lot more travel distance for the air to travel on top than below (which is pretty much in a straight line)
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Victor Van meer
I actuallt study aviation and the explanation about how the spoiler works is not true. Fast flowing on the bottom and slow on the top is nog true. This is a common made mistake but the air follows the curve so the air is bend. And because Newton said for every force there is a counter reacting force the wing is being pulled down. It is not so that the spoiler is pulled down because of the difference in speed of the air. Just being nerdy here
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I actuallt study aviation and the explanation about how the spoiler works is not true. Fast flowing on the bottom and slow on the top is nog true. This is a common made mistake but the air follows the curve so the air is bend. And because Newton said for every force there is a counter reacting force the wing is being pulled down. It is not so that the spoiler is pulled down because of the difference in speed of the air. Just being nerdy here
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Andrew Christianson
I'm eventually getting a S197 GT/CS Mustang spoiler for my 2014 3. 7L Mustang but need to have an extra 300 or more. I got dual sport stripes recently for a little less than that. Dang guy gave me a 1 gap instead of 2 like I told him. It looks okay but not as good as it would've. Oh well. Can't do anything about that. But yeah, can't wait to get my down force B)
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I'm eventually getting a S197 GT/CS Mustang spoiler for my 2014 3. 7L Mustang but need to have an extra 300 or more. I got dual sport stripes recently for a little less than that. Dang guy gave me a 1 gap instead of 2 like I told him. It looks okay but not as good as it would've. Oh well. Can't do anything about that. But yeah, can't wait to get my down force B)
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Raugh Out Roud
1: 06 I'm having trouble with this explanation. Physically it is correct in a way but mathematically you'll get the wrong numbers. Fd (or drag force) is calculated with the density 'rho' of a fluid and 0, 5. So Fd = 0, 5 rho of the fluid Vsquared drag coefficient Cd reference area A. This gives an answer in Newton that represents its (counteracting) drag force
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1: 06 I'm having trouble with this explanation. Physically it is correct in a way but mathematically you'll get the wrong numbers. Fd (or drag force) is calculated with the density 'rho' of a fluid and 0, 5. So Fd = 0, 5 rho of the fluid Vsquared drag coefficient Cd reference area A. This gives an answer in Newton that represents its (counteracting) drag force
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Bill Woo
I wish there were more photos/illustrations so I can tell what the components are that do what was so well explained. I can now tell you why fast cars want downforce and sacrifice drag to get it - thanks, excellently done with great moving illustrations -- but what is a dam vs. spoiler vs. wing vs. spoiler - not so much.
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I wish there were more photos/illustrations so I can tell what the components are that do what was so well explained. I can now tell you why fast cars want downforce and sacrifice drag to get it - thanks, excellently done with great moving illustrations -- but what is a dam vs. spoiler vs. wing vs. spoiler - not so much.
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Andrew Chang-Gu
This is why the new Tesla roadsters compressed air nozzles could revolutionize high performance vehicles. The nozzles could be oriented up to provide increases downforce even when the car is at complete standstill. Imagine the possibilities with such technology
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This is why the new Tesla roadsters compressed air nozzles could revolutionize high performance vehicles. The nozzles could be oriented up to provide increases downforce even when the car is at complete standstill. Imagine the possibilities with such technology
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chimpfann
i like the science but i dont like the talking to a child kind of attitude well first you show some pretty serious car crashes showing this isnt for kids but you still talk as if im 5 and these concepts are pretty complicated so i think you know the audience
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i like the science but i dont like the talking to a child kind of attitude well first you show some pretty serious car crashes showing this isnt for kids but you still talk as if im 5 and these concepts are pretty complicated so i think you know the audience
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Stefan Grosaru
The reason for downlift is not properly explained with Bernoulli's Principle, the proper explanation lies within Newton's third law. The spoiler pushes the air upwards and in return the air pushes the spoiler downwards thus creating the downforce.
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The reason for downlift is not properly explained with Bernoulli's Principle, the proper explanation lies within Newton's third law. The spoiler pushes the air upwards and in return the air pushes the spoiler downwards thus creating the downforce.
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Kartik Singh
You're actually wrong. You cited the Equal Time Transit theory when you said Has further to go. That theory is so wrong and so widely accepted that NASA had to actually publish a blog on the official website to stop spreading it. Yet, here you are.
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You're actually wrong. You cited the Equal Time Transit theory when you said Has further to go. That theory is so wrong and so widely accepted that NASA had to actually publish a blog on the official website to stop spreading it. Yet, here you are.
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