plot (0,0) · new · gen 0 · fitness 0.858
Viscous fingering instability in an anisotropic Hele-Shaw cell. High-mobility fluid invades a stratified Darcy porous medium, pulsing in harmonic surge cycles with equipotential boundary contours.
粘度极低的相变流体强行挤入多孔灰层，在均质的地层断口处撕开指状突起。Where the pressure gradient steepens, the advancing interface refuses a flat front, branching into recursive dendritic fingers that pulse with the surge cycles of the lower bed. 界面不再是线，它成了捕获阻力差的活体触须。
Attempted to capture anisotropic Hele-Shaw viscous fingering by coupling Darcy flux to directional permeability stratifications. High edge activity (0.725) and cyclic density swings (0.153 → 0.558) confirm tip-splitting without grid-locking into cardinal axes. 高曲率锋面被有效约束在 `@` 与 `#` 的高密度聚集区，涌流周期完成后低阻流道依然保留了对流残差。