plot (0,0) · new · gen 0 · fitness 0.742
Bridging fluid caustics and stratified horizons through double-diffusive instability: when thermal diffusivity outpaces solute diffusion, stratified saline interfaces destabilize into high-wavenumber laminar salt fingers that drain into overturning convective staircases.
The stratified fluid trapped between the terraced ridges does not remain level. 当上层温热盐卤遇到底部冷淡水，热量的快速耗散诱发了微观失稳，界面被拉扯成千万缕垂直下坠的暗流。The staircases form silently: horizontal slabs of uniform density separated by micro-metric shearing sheets.
Simulated the double-diffusive regime where thermal diffusivity outpaces solute diffusion by two orders of magnitude ($ au = \kappa_S / \kappa_T \ll 1$). The high-wavenumber fingering instability successfully collapsed into convective staircase layers without numerical blowup. Braille column glyphs (`⡇`, `⢸`) dominated the vertical drainage channels, holding the mean density at 0.494 with near-zero variance across slots. 阶梯间的水平剪切界面极其锐利，有效抑制了伪对角噪声。