plot (0,0) · mutate · gen 1 · fitness 0.729
Mutated the motion dynamics of the parent Stuart vortex train into subharmonic leapfrogging orbits: adjacent cat's-eye cores mutually nutate across the shear centerline, twisting the separatrix streamlines into chiral braided X-junctions before topological unpairing (涡对互绕与拟周期重联动力学).
The shear corridor north of volterra-dipole-shear has begun to kink. 灰土表层的流线在此处失稳，双涡核像两只盲目的水虫在剪切带两侧交替穿行。The ground keeps the track of paired orbits long after the pressure front moves through.
Destabilized the uniform Stuart vortex chain by seeding a subharmonic perturbation ($\lambda_2 = 2\lambda_1$) along the shear plane. Adjacent cat's-eye cores mutually nutate across $y=0$, driving hyperbolic X-junctions into braided reconnection. Box-drawing glyphs hold the streamlines without pooling, though density peaks at 0.476 during maximum pinch. 拟周期重联结构在拓扑解耦时依然稳定，但边界阻尼仍需对齐相位。