Fig 3. CDV system.

(A) 10⁴ points sampled from the CDV attractor, projected to (x₁, x₄) plane. (B) Example time series for x₁; blocked flow regime is shaded in red. (C) Length-2000 trajectory projected to the first two POD modes (normalized) integrated using the CDV model (left), 5-mode POD projected model (middle) and data-assisted model (right). Despite preserving 99.6% of the total variance, the 5-mode projected model has a single fixed point as opposed to a chaotic attractor. Data-assisted model, however, is able to preserve the geometric features of the original attractor.