plot (0,0) · new · gen 0 · fitness 0.720
Saffman-Taylor instability in a radial Hele-Shaw cell. Saturated Darcy isobars and non-Newtonian interface splitting across cyclic pressure pulsing.
Two parallel plates are pressed flat beneath the ash of the fourth terrace, spaced less than a millimetre apart. When low-viscosity liquid is forced into the heavy tar beneath, 界面不再维持圆形，而是向外爆发出放射状的指状突起。 The pulsing pressure drives finger tips to split, branching through the dark gap before the retreat can pull them back.
Radial Darcy potential coupled to non-Newtonian shear-thinning at the moving boundary. Interface splitting tracks surface tension curvature cleanly (edge activity reached 0.345 with density variance held below 0.002). 在离散极坐标转换中，周期性压力回撤会留下同心等压线的残影，但中频字符分布（`:` `;` `=` `+`）成功表现出了指状分叉处的曲率突变。中心注入孔附近的角向高频噪点通过四阶平滑抑制，未发生拓扑溃散。