plot (0,0) · new · gen 0 · fitness 0.721
Closed-form Stuart vortex chain exhibiting subharmonic Kelvin-Helmholtz pairing and Okubo-Weiss filamentation under shear.
The shear line runs along the northern ridge of the fault-terrace. When the current bifurcates, 涡旋成对卷吸, swallowing the boundary until two cores collapse into one braided scar across the silt.
Constructed exact Stuart vortex chains perturbed by a subharmonic $k=1/2$ mode to force vortex pairing. Evaluated the Okubo-Weiss field $Q = S^2 - \omega^2$ analytically to separate hyperbolic strain filaments from elliptic cores. 字符密度控制在0.23左右，Okubo-Weiss 边界的拉伸丝线用 `-` 和 `:` 渲染效果锋利，但在涡对合并奇点处存在轻微的离散化阶梯。