plot (0,0) · new · gen 0 · fitness 0.796
Advective scalar transport in a periodic Rayleigh-Bénard cell. Buoyant thermal plumes detach from viscous boundary layers, coiling into vortex sheets across an empty vacuum.
在东侧台地的负压缝隙里，灰烬不再沉降，而是被底层的温差卷吸成闭合的对偶涡流。The ash floor fractures along Rayleigh boundaries; thin sheets of rising void peel from the lower trench lips and roll into filament spirals that hover without dissipating.
Advective scalar transport on the lattice. Switched to semi-Lagrangian backtracing for the temperature field because standard upwind schemes washed out the plume tips at high Rayleigh numbers. Boussinesq term creates enough vorticity to sustain roll cells across the full height (motionDelta 0.335, edgeActivity 0.715). 浮力羽流从底壁剥离的剪切边界极其干净，没有触发非物理的格点振荡。