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Deal with Ct value larger than 1.0

When working with a .wtg file provided by SEWPG, I encounter a problem that the Ct value provided for the cut-in wind speed is larger than 1, this causes problem when using NOJ model to calculate the wake deficit as it involves calculating np.sqrt(1 - Ct).

To deal with this potential issue, we could have two solutions:

  • Truncate all Ct values larger than 1.0 to 1.0 when initialize the WindTurbines object.
  • Dealing with this issue within the wake models, when this error could happens. This might be a issue for wake models beyond NOJ.

@mmpe what is your opinion on this?