Fig. 2: Neural networks learning law of the wall using data. | Communications Physics

Fig. 2: Neural networks learning law of the wall using data.

From: Physics informed data-driven near-wall modelling for lattice Boltzmann simulation of high Reynolds number turbulent flows

Fig. 2

Diagram of neural networks learning law of the wall at y+ < 200 with IDDES data. a demonstrates dense data configuration (blue dots) with u+ as function of y+. NNWC prediction is illustrated by the red line. b demonstrates sparse data configuration (red dots) comparing NNWC (green line) and NNPC (blue line) predictions.

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