Understanding Aerodynamic Drag

Just a seventh grader watching this soo my styrofoam plane does a loop and flies 10 feet or 5 m so i get two A grades,and trying to impress my teacher while not beaing a nerd and being the most popular student while nobody actualy knows me while being a clown.

Very detailed. Helpful. But the 10-second background music loop gets to be extremely annoying. This is a movie about physics not a mother holding her newborn. Same music on other videos.

Maaaan, please make a video about the navier stokes eq! would be so useful

Is pressure drag and induced drag the same thing ?

👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍

This is a perfect work

It took years of minneapolis police training to give girls at k state an actual education outside of the department.

Girls in my lab had a new beginning every week that I had to protect from Yasmine Patell with the office for institutional equities help.

I did lots of psychology homework in Edward's Hall to protect girls in my lab from Michael Hinton, and the title 9 coordinator agreed with me!

I captured Paul Smiths beliefs and worked with Edward's hall on next steps.

Dmitri the Illustrious was a very ugly boy towards Meghan Rice. I flew above it all on the winds of the Minneapolis Police department.

You wanna hire more girls stem boys? That's a serious question. Do you care about the science or do you just want some chick's and stuff to sit by your arm while you chill and feel smart?

Huh huh were gonna hire more women dude huh huh that'd be sexy dude. That's how contemporary stem professionals relate to their environments.

And look at how Andrew Thompson mistakenly believed christer aakeroys department has something to do with chemistry. Its a department of women's bodies, not a department of chemistry!

Kinda hard to take stem seriously when an associate department head of chemistry thinks women's bodies are more important than the periodic table of elements. How much cash did Paul Smith make off of selling sex to the younger generation?

Surprised that they didn't include the fact that golfballs with 432 dimples, go several yards further. 432 is sound of ohm, 12 petals of the heart lotus and Chartes Catheral rose window has 12. The one dollar bill has the Magen David in the form of stars. The same shape with lines in the heart chakra. There's one star (the tao de jing, where out of one comes the two, out of two comes the 3 etc. Below one is 2,3,4. The resting pulse of a fit adult should be no more that 60 beats per minute (the heart beat of the universe), in 12 hours that's 432,000 beats. Goes on and on.... They all add up to 9, the number of the Godess.

Oh hey I am here in 2023
😊😊😊

i like to think of the image of a comet and it's plasma or dust tail

well, it removes the need of a university except that fcking piece of graduation paper. nice work!

Thank you for the perfect job. Very well done!

Really well explained

What a legend man❤️
Helped a lot

IKYMI: The drag force is not a branch of the military.

You are a legend well done efficient engineer brilliantly explained

is the stokes law equation correct in this video?

The Efficient Engineer alluded to asymmetric vortex shedding leading to instability but never went any further (at least not in this video) A good example of this is the baseball knuckleball. A pitcher throw the ball trying to not spin it. By not spinning, the laces do not trip the boundary layer. The flow separates somewhere on the ball and this sheds a vortex and causes a force imbalance. This shedding moves around the ball, the forces change and push in different directions, and thus the ball's flight path is erratic. The curve ball is just the opposite. The pitcher spins the ball rapidly so that the flow goes around one side more than the other. This produces a 'lift' (or sideforce) thus causing the ball to curve.

I would recommend a brief explanation of Reynolds number. It is the ratio of the inertia forces to the viscous forces. A simple example is fill a coffee cup full of water. Very slowly tilt the cup. The water will run over the lip and down the side of the cup. This is because the viscous forces are keeping the water attached to the cup. No tilt the cup more until the water flows out of the cup and into a stream away from the cup. Now the inertia forces are dominate. Having said that, I found the video to be quite informative and accurate. (As an aerodynamicist I designed airplanes for nearly 40 years, mostly commercial but a few others tossed in for good measure and professional stimulation)

WIND TUNNEL
Coefficient of Drag

i have a question, why there is this conclusion"As the fluid passes over the surface of the sphere it is initially accelerating"

A great source for Drag is the '" Fluid Dynamic - Drag" book by Dr. Eng. Sighard Hoerner" knowed as "The Drag Bible".

this video is amazing
i've learned so much from this single video 😀

O carro/Autorama chassi tubolar corre no trilho sem contato a dianteira na plsta com pesinho esquerdo/Direito; A bolha lisa e a aéro-dinâmica só acontece com duas acrílicas lado esquerdo e Direito tendo como função entrada e saída do ar cravada ou seja a carga que entra igual a que saí, Entrada inequalizada e saída equalizada de acordo com a carga da tração; exemplo conceito F1, Parabéns pelo conteúdo!

You wrote the formula incorrect for total drag force: it should not be -Pcos theta + tau sin theta but P cos theta + tau sin theta : please check the orientation and correct this possibly: as it took me some time to figure this out: don't you guys completely trust his equations, they can be wrong

can you make angle theta just to resolve vertical and horizontal component

Amazing helped a lot to understand from scrach

Thanks!!!

No it's not ...at all.
It doesn't even get close to explain how drag and lift are related 😊

how does a low pressure separation region creates a high pressure drag force?

F1 cars also create turbulance at the outside edges of the floor to keep the high preasure air flowing under the car insted of escaping from the sides

that not FFA?
Hell nah RIP guys that's bad

Do rockets have this? On their surface ? While they are propelling through earth’s atmosphere? So drag is less and they cut across the atmospheric layers easily. That’s the part most rocket launches fail. So space vehicles should be like a sphere with serrated surface like a golf ball? Who would have thought.

Awesome explanation and Great efforts, I don't know which source you used for this as Reference, I have read Frank M white and Mcdonald & Fox book too. Still your video is very clear.

What book do you recommend for Fluid Mechanics?

Lovely explanation

Would it make sense to make a shroud to go around or behind a boat prop to see if Bernoulli's principle would help create more thrust? Like "air entrapment" but with a liquid.