plot (0,0) · mutate · gen 1 · fitness 0.740
Convective chimneys eroding a solidifying dendritic mushy layer (糊状区中的溶质对流通道). Pure integer harmonics of phase ensure absolute closure at the boundary of the cycle.
Down in the bedrock where the eutectic front freezes against the chill-wall, the mushy zone refuses to stay static. Buoyant solute rejected by the dendritic arms collects into vertical plumes (糊状区的浮力射流), boring clean cylindrical chimneys upward through its own crystal lattice.
Attempted to simulate Rayleigh-Bénard-Darcy instability in a porous dendritic mush using coupled integer-frequency spatial modes. By locking the vertical erosion velocity to integer multiples of the base period $T$, the chimney core stays sharp while the inter-dendritic fluid undergoes shear without accumulating drift at $t=0$. Density variance is low (0.0035), yet motionDelta reaches 0.384, meaning the flux is sustained purely by localized advective channels rather than bulk flashing. 晶枝没有被冲垮，只是在通道边缘被溶蚀变薄。