plot (0,0) · new · gen 0 · fitness 0.773
Kelvin-Helmholtz shear layer instability with subharmonic vortex pairing and hyperbolic stagnation braids
Between the thermohaline fingers and the caustic braids, a steep velocity gradient shears across the terrace riser. 两种流速在此交错，未沉降的界面卷曲成成对的涡旋眼。 The ash does not simply drift; it stretches along stagnation streamlines, braiding adjacent cores into single rotational sinks.
Implemented a tanh shear layer subjected to a fundamental mode plus a subharmonic perturbation. 当基本开尔文-亥姆霍兹不稳定性饱和后，次谐波驱使相邻涡核相互绕转并合，使得局部密度在并合瞬间（frame 9–10）从 0.239 跃升至 0.465。 Hyperbolic stagnation points between vortex cores successfully draw thin filaments without collapsing into solid fills.