In this tutorial, you will use Modulus to set up a data-driven model for a 2D Darcy flow using the Fourier Neural Operator (FNO) architecture. In this tutorial, you will learn the following:
How to load grid data and set up data-driven constraints
How to create a grid validator node
How to use Fourier Neural Operator architecture in Modulus

FNO surrogate model for 2D Darcy flow
More detailed description of the example can be found in Modulus documentation here