Why this solution to the 3D periodic Navier-Stokes?

AI Thread Summary
The discussion centers on the physical understanding of directionally stationary flows in the context of the 3D periodic Navier-Stokes equation. It raises the question of whether such flows, influenced solely by viscous damping and lacking external forces, would remain constant in direction while changing in magnitude. A clarification is made regarding terminology, suggesting the correct term should be 'incompressible' rather than 'incomprehensible.' The conversation highlights the complexities of fluid dynamics and the implications of Newton's Second Law on the behavior of these flows. Overall, the dialogue emphasizes the need for clarity in discussing fluid mechanics concepts.
davidpurvance
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Who can provide a physical understanding to this solution to the 3D periodic Navier-Stokes equation: http://purvanced.wordpress.com?
 
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Directionally Stationary Navier Stokes Flows

By Newton's Second Law, wouldn't incomprehensible Navier Stokes flows, devoid of any external forces, be directionally stationary? This is, flows changing in magnitude due to viscous damping, but not in direction?
 
I think you mean 'incompressible' flows, rather than 'incomprehensible' flows.
 
Thread 'Question about pressure of a liquid'

Thread 'Question about pressure of a liquid'

I am looking at pressure in liquids and I am testing my idea. The vertical tube is 100m, the contraption is filled with water. The vertical tube is very thin(maybe 1mm^2 cross section). The area of the base is ~100m^2. Will he top half be launched in the air if suddenly it cracked?- assuming its light enough. I want to test my idea that if I had a thin long ruber tube that I lifted up, then the pressure at "red lines" will be high and that the $force = pressure * area$ would be massive...
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Thread 'Why is the 3 body problem unsolvable? And what will happen if someone solves it?'

I feel it should be solvable we just need to find a perfect pattern, and there will be a general pattern since the forces acting are based on a single function, so..... you can't actually say it is unsolvable right? Cause imaging 3 bodies actually existed somwhere in this universe then nature isn't gonna wait till we predict it! And yea I have checked in many places that tiny changes cause large changes so it becomes chaos........ but still I just can't accept that it is impossible to solve...
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