The benefits of Learning with models and data versus Learning with Data Only are significant. When you do Data regression, you are Learning only with data. With RS, you are Learning with the models because you start from the physics and with data because we compute these snapshots.
For example, consider the problem of a Mirage F one and the sloshing of a fuel tank. There is a couple fluid-structure interaction, with two different systems of fluid - the aerodynamic from the outside and the sloshing of the fuel from the inside. We are interested in the Flutter Speed Index.
About 10 years ago, we demonstrated that this concept could be implemented on the first iPhone. We were able to show fluid-structure interaction grounded in CFD.