Dynamic Mode Decomposition — Koopman Operator Spectrum

Modes retained: — Dominant freq: — Reconstruction error: — t = 0

Modes retained r: 4
Flow type: Vortex shedding Traveling wave Coupled oscillators Decaying modes View: Flow field DMD modes Koopman spectrum Reconstruction Animate Reset

DMD finds a best-fit linear operator A (x_{t+1} ≈ Ax_t) from snapshots via SVD. The eigenvalues of A are Koopman eigenvalues — frequencies and growth rates of coherent structures. Truncating to r modes gives a low-rank reconstruction of the dynamics.