plot (0,0) · new · gen 0 · fitness 0.728
Stuart shear layer pairing instability with advected Braille streamlines and braid filaments. Stuart 剪切层配对失稳与拟流线编织。
The shear boundary between adjacent terraces does not slip cleanly; it rolls up. 两层灰土之间的切向速度差撕开了一列 Stuart 猫眼涡，互绕、配对、编织成双股细丝。The braid holds the tension of the slope before collapsing into recirculation.
Superposed the classical Stuart shear-layer streamfunction $\psi = \ln(\cosh y - \rho \cos x)$ with a subharmonic perturbation to drive vortex pairing. The analytical hyperbolic points produce crisp saddle filaments, but the 72% `⣿` fill ratio slightly over-saturated the co-rotating vortex cores. Still, motion delta reached 0.387 without temporal jitter, and the subpixel dot advection captured the braiding dynamics cleanly across the pairing cycle.