Editing Talk:2678: Wing Lift

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::You seem to be describing the "equal transit time fallacy". Air going over the top of a wing doesn't necessarily have to travel further (that depends on the shape of the airfoil), and even if it does that doesn't in itself imply anything about the pressure. [[User:Zmatt|Zmatt]] ([[User talk:Zmatt|talk]]) 20:11, 30 September 2022 (UTC)
 
::You seem to be describing the "equal transit time fallacy". Air going over the top of a wing doesn't necessarily have to travel further (that depends on the shape of the airfoil), and even if it does that doesn't in itself imply anything about the pressure. [[User:Zmatt|Zmatt]] ([[User talk:Zmatt|talk]]) 20:11, 30 September 2022 (UTC)
 
::Lift is not complicate if you look at Prandtl’s original work, and Doug Mclean has done a good job editing the actual Wikipedia article. If you consider the entire atmosphere the asymmetric flow around an asymmetric body in a fluid results in an asymmetric pressure distribution, which is equal and opposite the pressure on the ground. That is, a wing produces a pressure difference that is transmitted in steady state to the earths surface which ultimately supports the aircraft as a reaction force. The asymmetry in the flow is the result of fluid mechanics and can be determined from Navier Stokes, which is Newtons laws of motion applied to a fluid, with viscosity. People get lost because they want to invoke momentum transfer, which is not needed in the global view. To see where the momentum transfer is occurring, you can only utilise think slices of the atmosphere as the control volume, hence the reason it is confusing. This is compounded by people seeing trailing vortices and stating that those must be the mechanism for the momentum transfer, and they are not. This was all established over 100 years ago. That Scientific American article is click bate, and I immediately asked the editor if I could write a response to it, and I got no reply. [[User:AerospaceDoctor|AerospaceDoctor]] ([[User talk:AerospaceDoctor|talk]]) 02:39, 30 September 2022 (UTC)
 
::Lift is not complicate if you look at Prandtl’s original work, and Doug Mclean has done a good job editing the actual Wikipedia article. If you consider the entire atmosphere the asymmetric flow around an asymmetric body in a fluid results in an asymmetric pressure distribution, which is equal and opposite the pressure on the ground. That is, a wing produces a pressure difference that is transmitted in steady state to the earths surface which ultimately supports the aircraft as a reaction force. The asymmetry in the flow is the result of fluid mechanics and can be determined from Navier Stokes, which is Newtons laws of motion applied to a fluid, with viscosity. People get lost because they want to invoke momentum transfer, which is not needed in the global view. To see where the momentum transfer is occurring, you can only utilise think slices of the atmosphere as the control volume, hence the reason it is confusing. This is compounded by people seeing trailing vortices and stating that those must be the mechanism for the momentum transfer, and they are not. This was all established over 100 years ago. That Scientific American article is click bate, and I immediately asked the editor if I could write a response to it, and I got no reply. [[User:AerospaceDoctor|AerospaceDoctor]] ([[User talk:AerospaceDoctor|talk]]) 02:39, 30 September 2022 (UTC)
:::There's no question that lift results from the solution to the Navier-Stokes equations applied to asymmetric flow around a surface. The question is if there is a simplistic explanation for lay people that actually holds up. [[Special:Contributions/172.71.167.38|172.71.167.38]] 01:16, 3 October 2022 (UTC)
 
  
 
Could the spooky skulls be an inderect reference to quantum spooky action? Not sure how that would apply to lift, though.
 
Could the spooky skulls be an inderect reference to quantum spooky action? Not sure how that would apply to lift, though.

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