Fig. 6. Extrapolation assessments of the present nonlinear autoencoder with lift augmentation.

Three extrapolating cases are considered: 1. noisy data, 2. two vortex gusts (vertically arranged), and 3. two vortex gusts (horizontally arranged). The initial condition for the cases with two vortices is illustrated in the plot of each latent space. The trajectories for the undisturbed cases are shown in light color in latent space. The value presented on each decoded flow field corresponds to the time-averaged structural similarity index between the decoded and reference fields.