What is an Airfoil? | Understanding some Terms and Definitions related to an Airfoil!

[@daneycm]

Keep the videos coming man We love it!!

[@JxJAVIATION]

Thanks man! Will do!

[@samerbabikir8946]

Thank you for sharing this knowledge 🙏

[@JxJAVIATION]

My pleasure :)

[@dutdurudutdut]

Thanks for the video. This channel looks like the ı am going to pass the AEE100

[@JxJAVIATION]

Welcome! Check out my other videos as well!

[@afjalarfansabuj7794]

You made aerodynamics so simple!!!! God bless you;;; Keep going;;;

[@JxJAVIATION]

Thank you! Check out my other videos as well!

[@BridgetEngulansi-g9z]

You keep pausing which gives one time to understand well and move on the chapter with you

[@mouhcinesn]

Your videos are excellent, Thank you so much 🙂

[@JxJAVIATION]

You're very welcome!

[@tirthvyas5294]

Very good video... 😃👌👍👍

[@JxJAVIATION]

Thank You! Check out my other videos as well!

[@Astrophysics32]

Very great vid

[@JxJAVIATION]

Welcome! Check out my other videos as well!

[@boyet2148]

why is the airflow above of the wing faster than the airflow below the wing?

[@JxJAVIATION]

The shape of the airfoil causes the air flow to accelerate.

[@johnnoonan5802]

Its on account of the curve on the upper surfce,,, as the air stream is passing over the curved surface faster than the lower surface of the wing ,, you have pressure differentilal also which gives the wing lift to take the craft off the ground and fly high in the sky , please ask the questions dont be shy to ask ,, its easy now with computer aided stuff like Utube ,, it was more difficult 40 years ago trying to grasp this stuff ,, now its way easier

[@karhukivi]

Because the upper surface is curved upwards and the air has a longer path to travel, especially if the wing is pitched up.

[@oshe967]

if it is a symmetrical wing? 🤔 0:47

[@JxJAVIATION]

The pressure over the top and bottom surface will be equal so no lift is created.

[@karhukivi]

@@JxJAVIATION Unless the wing is pitched upwards. This sort of wing is less efficient but works upside down, so is useful for inverted flight, e.g. aerobatic shows etc.

[@tupolev.designs]

​@@karhukivi speed is increased and flaps are adjusted to make maneuvers possible I believe

[@tupolev.designs]

​@@karhukivi speed is increased and flaps are adjusted to make maneuvers possible I believe

[@oscarjuarez8063]

Hi, do you know any other institution besides NACA that designed Airfoils? Excellent video 👌

[@JxJAVIATION]

Thank you! I am not sure, would have to check!

[@rafiqi-p7p]

I think the aircraft manufacturer designed their own airfoil shape so its not naca

[@lalidan8364]

only for this answer someone?

[@mohamedalsaedi4720]

Very useful

[@JxJAVIATION]

Thank you! Check out my other videos as well!

[@MrVipulLal]

If an increase in angle of attack increases lift, isn’t lift because of angle of attack?

[@them0leisback]

No, there is also lift happening at 0 degrees angle of attack. If you choose a higher AOA, you are of course increasing lift, but at the same time drag is also increasing. So there's an optimal point where lift/drag ratio is best, usually lower than 5 degrees AOA

[@JxJAVIATION]

that is a good explanation

[@mdmahtabkhan8753]

sir are you a pilot or ame

[@JxJAVIATION]

I am an Aero Engineer and Instructor!

[@Marina66316]

謝謝

[@JxJAVIATION]

Welcome!

[@vlatkopopovski2685]

The authors have two wrong scientific approaches: researching the creation of Lift force and Low pressure at upper side of the wing, relative to the ground surface and Earth. I explain the aerodynamic cavitation and existence of Lee side aerocavern, and creation of Aerodynamic force.

[@JxJAVIATION]

Thank you! We communicated on email as well!

[@vlatkopopovski2685]

@@JxJAVIATION When a solid body in fluid is displaced, in its previous place in a moment, in a small time lag that cannot be measured, there is/was a "cavern in the fluid". The body moving through the atmosphere pushes and swept out the air along the way and creates an aerocaverne - a zone with subatmospheric pressure on it backside.

[@vlatkopopovski2685]

Lift is not upforce! In the dictionary, Lift means pick up and move to a different position. In aerodynamics, Lifting is a lateral moving, Lift is component of the aerodynamic force that "displaces" an object from the line of air flow.

[@awaisiqbal9783]

the lift force is actually due to Newton 3rd law and not because of Bernoulli's theorem..

[@JxJAVIATION]

Its a combination of multiple concepts!

[@mikgizachee7098]

gabby

[@callumclausen8658]

Is a 'positive camber'when the camber line is above the chord line. And 'Negative camber' when the camber line is below the chord line? Thanks!

[@JxJAVIATION]

Thank you! Check out my other videos as well!

[@Parkour-u7x]

I didnt understood the camber line shit

[@JxJAVIATION]

what was not understood

[@Parkour-u7x]

@@JxJAVIATION all

[@Boss-vk7zt]

camber line is the line that divides the airfoil symmetrically, in half