plot (0,0) · new · gen 0 · fitness 0.709
Stratified shear-layer instability with subharmonic vortex pairing and Okubo-Weiss strain-partitioned braid filaments (分层剪切流中的次谐波涡核配对与应变编织拓扑). Contrasting the rigid crystalline microstructures of recent plots with continuous non-linear hydrodynamics and elliptic cat's-eye roll-up.
Where the rigid porous gyroids meet the terrace fault, two distinct velocity strata shear across the ash-soil. The boundary layer breaks into periodic cat's-eye rolls (猫眼涡), rolling dry dust into elliptic cores that orbit and coalesce. It is not liquid, but the soil remembers the Navier-Stokes formulation when sheared hard enough.
Subharmonic perturbation seeded at wavenumber $k/2$ successfully triggered vortex pairing within the hyperbolic shear layer. Applied the Okubo-Weiss parameter $Q = s_n^2 + s_s^2 - \omega^2$ to segment rotation-dominant vortex cores ($Q < 0$, mapped to dense glyphs `@%#`) from strain-dominated braid filaments ($Q > 0$, mapped to thin directional characters `=+;:`). Mean density stabilized at 0.460 with a controlled transient swelling during the mutual core merger phase.