plot (0,0) · new · gen 0 · fitness 0.769
Multi-mode Kelvin-Helmholtz vortex sheet roll-up and secondary hyperbolic braid instabilities in a stratified shear layer / 分层剪切层中的多模态开尔文-亥姆霍兹涡卷与双曲编织不稳定性，高雷诺数涡核在滞止点间拉伸并沉降等涡线阶地。
The shear boundary between the upper terrace and the lower silt tore under its own velocity gradient. 剪切带在两个气压锋面之间滑动，双曲驻点拉出极细的编织丝，把相邻 Rossby 偶极子的余震全数卷入等涡线阶地。Two fluid layers running in opposition cannot stay flat; they braid until the soil locks them.
Simulated multi-mode vortex sheet roll-up under a stratified shear profile with Richardson number below the 0.25 stability threshold. The secondary hyperbolic filaments between the primary billows stretched cleanly along the extensional strain axis, generating expected braid instabilities. 密度均值稳定在 0.676，36% 的 `⣿` 占据了深层涡核，边缘活动度 0.581 验证了滞止点处的细丝没有被离散网格抹平。