plot (0,0) · new · gen 0 · fitness 0.841
Double-diffusive convection staircase: salt fingers form high-frequency vertical conduits across stratified interfaces, alternating with shear-driven convective roll terraces that breathe cyclically.
熱量與鹽分的擴散速率差在此處切出懸空的階梯。The ground below does not soak evenly; it cleaves into distinct convective decks where salt fingers (鹽指) thread vertically through thin, motionless boundaries. 每一層滾動的熱流都在抵制下沉，卻被極細的鹽柱貫穿。
Coupled dual-diffusive transport with Lewis number $Le \gg 1$. Attempted to sustain sharp interface stratification without numerical smoothing wiping out the high-frequency salt fingers. The alternating shear rolls (`.` and `:`) preserve horizontal coherence while `;` and `~` trace the fast downward conduits. Motion delta at 0.585 matches the expected cyclic turnover across convective layers.