Introduction to Aerodynamics: Lift
ฝัง
- เผยแพร่เมื่อ 5 ต.ค. 2024
- Hi, I know it's not Thursday, but I'm trying my best to stick to this schedule.
In this video we talk about how an aircraft generates lift.
I explain the main principle behind it, which is the Newton's second law.
P.S. I don't think the mic is working, let me know what you think.
Connect with me:
Linkedin | / aliyaburkit
Instagram | / aliyaburkit
Thanks 🎉... really explanatory..... always watch your videos.....love from India ❤️
Thank you for watching!
Thank you mam
It's great for the one who's willing to take aerospace engineering
I love aerospace engineering the most
nd thank you for your videos..
Thanks for watching!
i learned a lot from you compare to my whole semester of online class. 😅 please make more videos! 🥺 i study aeronautical engineering btw :))
The equal transit time hypothesis is circular reasoning. It says that a pressure differential causes lift.
However, 'pressure differential' is a synonym for
'lift'. Lift does not cause lift. You can only get lift if you can deflect air. And you can't deflect air without getting lift. One is the action, the other, the reaction.
Thanks, very informative and in simple way. Respect from Pakistan 🙏
Thank you ma
You're really making everything easy
I will watch your video in free time
Just now I'm preparing for test 😸
Thank you for letting me know 😁
Amazing job. Very informative videos. More power to you. God Bless 😊
Thanks.....Love from India....From which country you are from?....make a QnA🔥
i am from Tamil Nadu, India!
Nice! Thank you for watching!
Thank you for watching! I am from Kazakhstan. And for sure I will, once I get my schedule back on track..
@@AliyaBurkit In my country, Kazakhstan, we have many problems: Aerodynamic, laminal, and TH-cam Simp
from KENYA with much admiration
Thank you for being here!
Great, smart and beautiful
Thanks u so much
I learned a lot in this playlist. Thanks. I would like to ask (I know this is not aerospace) if NACA foils are applicable as hydrofoils (in hydrodynamics). Thanks!
yes ... just use the density of the water they are runnign in ... as the NACA numbers are using the pressure of AIR and not fresh water or salt water ... but BOTH are fluids
.
be aware that hydrofoils are air foils for water ... and they have one other thing to consider ... stuff that may cling to them while in use or over time ...
The shape of the airfoil does not cause lift. Rather, the shape determines the efficiency in the work of deflecting air. You can defect air inefficiently by having your flaps on while cruise, or by having them off while landing. However the shape is not the cause of the force, the deflection is.
Mic is working...no problems
Haha thanks
Nice. Thankyou
Welcome 😊
big fan from Zimbabwe in Africa
Thank you for watching!
Great job!!
Aaliyaji,
Hoq does a pilot jydge that plane is ready for a lift off above ground? What indications he sees on panel? It is observed that he lifts off front wheel first and not rear wheel where as in helicopter , whole body lift. What is the difference in lift off of aur plane and helicopter?in short, Are both lift off same?
Great video, it was really helpfull for this semester. Can you do some videos on potential flows?
Thank you for watching! Yes, but in a more distant future)) I have so many video requests by now..
@@AliyaBurkit great, thanks
Finally, been waiting for new uploaded lessons from you :)))))))
Happy to hear that!
A pretty face combined with high intelligence and a solid education is a winning formula.
Thanks for the video.
Flued dynamics has some nice diescriptions of the theories, but as soon as I try to do the calculations it suldandy becomes quite hard, often impossible by hand.
Here are some of the questions I have. Maybe the is a video ideer among them. :-)
1. How to calculate Re (reynolds number) in given situation. I can do it for a fluid in an pipe, over a flad surface, and maybe for an airplane wing. But I cannot do et for an axial fan or a propeller where Re might change over the length of the blade?
2. How do vortex generatorers work? How do you know what size and how far back on the wing to place them?
3. The angle of attack makes sense for for a wing, but again for an axial propeller the incoming air and the propeller rotation creates a velocity vector. close to the center the incoming air has a higher relativ speed compared to the blade, and at the tip of the blade the blade speed is much higher relativ to the incoming air. Thus the angle of attack should not be constant along the blade. And for an axial fan, the blade is what moves the air, thus the incoming air speed might not be constant along the blade either. This creates a loop, you cannot calculate how much air the "propeller/fan blade" moves, before jo have calculated the incoming air speed such that you can calculate the optimal angle of attack along the blade? I guess the tip of the blade would move more air assuming the same area do to the higher speed, thus the incoming air speed is higher at the tip, meaning the angle of attack should be smaller at the tip, compared to close to the center.
4. And then we have how much drag the blade creates at the center and at the tip? (depending on the angle of attack and so on.
5. And how many blades should the propeller have?
6. And how to reduce the noises from the propeller?
7 And how to select a airfoil? airfoiltools.com/
I have plenty of questions. :-)
Looking forward to your next video.
Thank you for watching and suggesting these ideas! It's pretty difficult to explain it in the comments, so wait for the videos some time
for 3 an iterative calculation for each parameter feeding back in to the equation to refine the result further can work ... BUT you need to start from the basic values ... like air speed and propeller speed plus chord at each slice of the propeller... etc ... makes for a lot of calculation but spreadsheets are good at that ;)
for 5 ..
... how much drag and speed does each blade introduce and which compromise is best for your needs ...
6 how close to the speed of sound is any part of the propeller .. like on helicopters who's tips are curved back that reduces drag and noise ... and yes it is also a consideration for 5 as well
7 ... it depends on what you want it to do better ... manouver ... lift heavy loads ... or stay up longer and so on ... again a compromise of all 3 that best suits your needs ...
.
ever notice aerodynamics is all a compromise ... you have to let something be more prevalent to get a desired result while repressing other things ...
I sense an underrated channel
Thanks!
I love the fact that you are smiling and laughing during explanation : )
Lol thanks, I don't know if it's a good thing or not
so by the ketana principle Tesla's omni directional water valve cant work ... yet it does ... and very well ... which says to me the ketana principle is flawed ... in some way ...
We used bernouli theory
Magnus effect
Great idea for one of the next videos
Hello can anyone apply Bernoulli theorem to explain the principle of Lift in airplane?? 🙏🙏🙏
Can you continue propulsion lectures
Yes I will!
cute, smart, aerospace engineer 3in1
lol thanks
ur cute :)
lol thanks