Support for turbulence intensity as a wind condition

[maapasan]

Manage turbulence intensity arrays in FlorisInterface.reinitialize

While wind speed or wind direction are defined using arrays (which allow the simultaneous simulation of several wind inputs), the turbulence intensity is defined as float.

In FLORIS, turbulence intensity is established for all combinations of direction and speed.

However, the turbulence intensity values are dependent on wind speed (turbulence intensity decrease with wind speed in real operating conditions).

Proposed solution

Update implementation in order to be able to run the simulations with array input turbulence intensity
These changes will include the definition of turbulence_intensity in FlowField, as it is defined as float and it is needed NDArrayFloat, similar to wind_speeds and wind_directions.

Additional context

Current use of the function, where wd and ws are np.array with same shape
fi.reinitialize(wind_directions=wd, wind_speeds=ws, time_series=True)
Suggested use (wd, ws and ti are np.array with same shape
fi.reinitialize(wind_directions=wd, wind_speeds=ws, turbulence_intensity= ti, time_series=True)

Thank you very much!!!

[paulf81]

A good suggestion @maapasan , I'm adding some tracking info and we'll put it on the agenda for v3.5

[paulf81]

@bayc , is this something you've looked at before?

[paulf81]

I hope to address this request in #775

[paulf81]

Now connecting to Issue #778

[paulf81]

This is included in v4 via #782