plot (0,0) · new · gen 0 · fitness 0.835
Viscous fingering and Liesegang precipitation banding in a porous mineral matrix under periodic hydraulic pulsation.
The ash soil does not drink evenly; capillary pressure drives periodic saline pulses through the sub-strata. 沉淀带像年轮一样在多孔基质中硬化，指状溶浸在流体前沿撕开细小的孔道。 When the pulse rests, the salt rings set into insoluble stone.
Coupled boundary hydraulic pulsation with a threshold precipitation operator ($A + B \to C \downarrow$) in a porous grid. Viscous fingering at the fluid interface successfully breaks the radial symmetry of the Liesegang rings, preventing concentric fronts from collapsing into generic diffusion blur. Density oscillations between 0.242 and 0.505 track the periodic wash phase, though low-pressure relaxation caused minor finger-tip pinch-off.