Gauss Curl Hybrid Model

[Liam1398]

Hello there I'm currently involved in a project using wake steering in windfarms and I wanted ask a question regarding the Gauss Curl Hybrid model. I've seen file called input_gch_paper in the other_jsons folder, in the examples section when I download FLORIS, and was wondering If I place this input file into my FLORIS model am I using the GCH model?
Any help would be greatly appreciated!

[bayc]

Hello, that input file is to re-create specific cases from the GCH journal article. Perhaps the easiest way to ensure you are using the GCH model for your simulations is to build your input.json file from the floris/examples/example_input.json file. The wake model parameters defined in there are for the GCH model, in particular:

"velocity_model": "gauss_legacy",
"wake_velocity_parameters": {
  "gauss_legacy": {
    "calculate_VW_velocities": true,
    "eps_gain": 0.2,
    "ka": 0.38,
    "kb": 0.004,
    "use_yaw_added_recovery": true
  }
},
"deflection_model": "gauss",
"wake_deflection_parameters": {
  "gauss": {
    "dm": 1.0,
    "eps_gain": 0.2,
    "use_secondary_steering": true
  }
}

The GCH modifications are most tested/validated with the gauss_legacy velocity model and the gauss deflection model currently. You can also enable/disable the GCH modifications once you already have a loaded floris_interface object by using floris_interface.set_gch(enable=True) and changing the enable input as needed.

[Liam1398]

Thank you very much for the really quick reply! I'll have a lash using that model thanks very much for the help!

[bayc]

Happy to help!