Since wings are all about relative ratios i suspect the influence of the ridges is also dependent on the cord length so the ridges should get smaller towards the tip.
Thank you for bringing back subtitles, though I'd rather you add subtitles to the videos via youtube itself. And I remember hearing about the whale study before, interesting to see it show up again in convergent evolution. Though I doubt they'd make wings look any better, in fact I'm willing to bet plane companies would rather take the brunt of fuel inefficiency over the loss of public likeability, they're that ugly.
@PremierAerodynamics if they painted the crest and troughs different colors giving a striped pattern, it'd make them look much better, I imagine neon colors in crests would go well with black troughs.
If the fetish witch is gettin told, that cicada wings are the state of art - She might chant them nice. I've seen tubercle sailplane wings several years ahead. They look very expensive , stylish and impressive.
21:56 I think the efficiency comes from the negative pressure on top of the wing without tilting it to increase the frontal area & change the negative pressure from pulling up to pulling the wing back. *Idk*
Sorry, its early and I havent read the paper.. but at around 17min you discuss the thrust efficiency / Watt... I'm surprised the ridged props produce more thrust per Watt. Could it be the graph is showing the opposite? That there is more Wattage USED per Gram of thrust measured?
Video request: can you do a CFD analysis of a modern yo-yo. There are around 4 main shapes to modern yo-yos such a “O” , H, or W. Are there an aerodynamic difference between the shapes, even a nuance you could explore are the ultra wide yo-yo which are a common modern trend. Think this will be right up you ally. Thanks - A fan
The only thing I have to add, is that the wings will have the air travel perpendicular to said wings, but the rotors should throw air outwards a little bit due to the rotation of the propeller. So having all the ridges slightly curved to match the flow of the air across the propeller as it spins would probably give the best result. - someone who has literally ZERO clue what they're talking about and just trying to sound smart.
Changing the structure of airfoil surfaces to improve areodynamics is known for many decades now. Skark scaling, whale tubers, owl ridges etc, etc. Something about these solutions (probably cost) is holding back implementation. Just a small percent less drag / more efficiency is usually considered worth the effort in airliners due to savings on fuel. What is the case with airfoil surface texturing? Why is it not implemented?
It is a problem where consciousness is involved. The people who manufacture technical stuff, are in competition. So if nature invented this, they might not be willing to pay the patent fee. Cause they make a living by destroying nature.
Well, there are many different aspects to an airplane's aerodynamics. There are the static quantities, like drag, lift, and moments. Then there is also dynamic stability, which needs more research into. The first described effects of tubercles was back in 1995 and that was simply lift and drag stall characteristics.
Thank you! Now my neighbours will never know when my drone is near their window
You're welcome!
😂
Hawt.
Lol. HAWT - Horizontal Axis Wind Turbine.
@@PremierAerodynamics 🥵 Tell me more!
Since wings are all about relative ratios i suspect the influence of the ridges is also dependent on the cord length so the ridges should get smaller towards the tip.
Thank you for bringing back subtitles, though I'd rather you add subtitles to the videos via youtube itself. And I remember hearing about the whale study before, interesting to see it show up again in convergent evolution. Though I doubt they'd make wings look any better, in fact I'm willing to bet plane companies would rather take the brunt of fuel inefficiency over the loss of public likeability, they're that ugly.
They would look more high-tech and that could be a selling point, perhaps.
@PremierAerodynamics if they painted the crest and troughs different colors giving a striped pattern, it'd make them look much better, I imagine neon colors in crests would go well with black troughs.
If the fetish witch is gettin told, that cicada wings are the state of art - She might chant them nice.
I've seen tubercle sailplane wings several years ahead.
They look very expensive , stylish and impressive.
maybe a video of the blades with smoke blowing over them could be a good addition to a research paper like that
Definitely. Or some kind of PIV or wake surveying.
21:56
I think the efficiency comes from the negative pressure on top of the wing without tilting it to increase the frontal area & change the negative pressure from pulling up to pulling the wing back.
*Idk*
Sorry, its early and I havent read the paper.. but at around 17min you discuss the thrust efficiency / Watt... I'm surprised the ridged props produce more thrust per Watt.
Could it be the graph is showing the opposite? That there is more Wattage USED per Gram of thrust measured?
Video request: can you do a CFD analysis of a modern yo-yo. There are around 4 main shapes to modern yo-yos such a “O” , H, or W. Are there an aerodynamic difference between the shapes, even a nuance you could explore are the ultra wide yo-yo which are a common modern trend. Think this will be right up you ally. Thanks - A fan
Your paper link got cut off. What's the DOI?
The only thing I have to add, is that the wings will have the air travel perpendicular to said wings, but the rotors should throw air outwards a little bit due to the rotation of the propeller. So having all the ridges slightly curved to match the flow of the air across the propeller as it spins would probably give the best result. - someone who has literally ZERO clue what they're talking about and just trying to sound smart.
Slightly curved ones would be interesting, especially as you go towards the wingtip where you have air bleeding around the tip.
If you really want a quiet wing shape then look at a Owls wing.... They have soft feathers on the trailing edge to keep the air noise down
Changing the structure of airfoil surfaces to improve areodynamics is known for many decades now. Skark scaling, whale tubers, owl ridges etc, etc. Something about these solutions (probably cost) is holding back implementation. Just a small percent less drag / more efficiency is usually considered worth the effort in airliners due to savings on fuel. What is the case with airfoil surface texturing? Why is it not implemented?
It is probably primarily just manufacturing costs, and maybe to a secondary extent cleaning?
It is a problem where consciousness is involved.
The people who manufacture technical stuff, are in competition.
So if nature invented this, they might not be willing to pay the patent fee.
Cause they make a living by destroying nature.
Well, there are many different aspects to an airplane's aerodynamics.
There are the static quantities, like drag, lift, and moments. Then there is also dynamic stability, which needs more research into. The first described effects of tubercles was back in 1995 and that was simply lift and drag stall characteristics.
Bend the last 10% 90*. Same thing. More thrust. Known since the 80s or so.
We can now make more quiet drones, from some of the noisiest animals?
You know it!
21:56
Maybe the dirty air, wake, acts as an natural audio cancelation mechanism.
Idk x2
It could also be breaking up the noise from the leading and trailing edges, which are big producers on airfoils.
Now to put tubercles and toroidal propellers together and make something extra efficient.
Oh yes, now those Russian won't hear it coming.
Seriously though, this will absolutely be of good use in war.
The US military making new lighter & higher capacity batteries, then this suppressed prop comes along, drone warfare's gonna be insane in Ukraine!
sum whales also have similar petrusions on their fins, just a lot less
Got a headache listening.
PC fans do this!
Yep, those were inspired by tubercles.