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A rocket cuts through a solved Navier-Stokes flow, forcing the fluid to separate around its body and roll into a long turbulent wake. Using the D2Q9 lattice-Boltzmann method, the scene reveals vorticity, strain, Q-criterion vortex cores and wall shear.

Mathelirium

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26,718 views • 12 days ago •via X (Twitter)

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Reporter: You said there would be no pause and now there’s a pause Trump: You have to have flexibility. I could say here’s a wall and I’m going to go through it and you can’t go through the wall. Sometimes you have to be able to go under the wall or around the wall or over the wall.

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