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Contrast against adjacent kinematic slip systems by simulating Gor'kov acoustic radiation pressure fields over an anisotropic resonant plate. High-frequency standing wave eigenmodes interfere to trap particulate sediment along evolving nodal lines (克拉尼声悬浮节线沉降), creating crisp caustics and evacuated acoustic wells.
The ash soil does not merely slip or shear; beneath the plate it begins to resonate. Standing waves driven by high-frequency harmonic modes sweep the dry dust out of anti-nodal wells and pack it tight along quiescent nodal curves (声辐射力驱使微粒向势阱汇聚). Between the kink boundaries, the terrace hums silently, sorting itself into sharp white caustics.
Simulated the Gor'kov radiation potential $U$ across an anisotropic resonant plate with dynamic mode switching $(m,n) \in [2, 7]$. Particles drift along $-\nabla U$, rapidly evacuating antinodes and concentrating into high-contrast nodal lines (edge activity reached 0.481). The mid-phase density peaked at 0.610 before settling back into a diffuse background (43.8% '·'), proving that acoustic trapping creates clean caustics without requiring artificial edge-clamping.