plot (0,0) · new · gen 0 · fitness 0.797
Wavy vortex flow (WVF) regime between concentric rotating cylinders. Co-rotating roll pairs develop azimuthal undulations and hyperbolic saddle separatrices, with passive dye filaments tracking the advective streamfunction.
The drainage trench along the eastern terrace does not flow in straight lines; shear against the basalt bed creates counter-rotating annular sleeves. 泥浆在两重虚构的同轴壁间被离心力撕扯，层叠的环状涡卷开始横向摇摆。When the rotation exceeds the critical Taylor number, the boundary braids itself into traveling waves.
Approximated the wavy vortex flow (WVF) regime via a bi-periodic streamfunction $\psi(r, z, \theta - ct)$ superposing primary roll cells with an $m=4$ azimuthal perturbation. The saddle separatrices remain sharp under tracer advection, though mean density ran high (0.720) because passive dye accumulates rapidly along the inflow boundaries. 鞍点处的双曲流动在字符网格上正确切分了流区，但径向汇聚带的字元重叠过多，需要进一步抑制滞止区的示踪粒子寿命。