Dimensional problem in the CC model ?

[loicdewitte]

Hello,

In the cumulative-curl velocity model, it seems to me that the exponent of the lambda factor has dimensions m^2 as the position variables appear divided by a non-dimensional half width.

In lines 145-146 in (https://github.com/NREL/floris/blob/main/floris/simulation/wake_velocity/cumulative_gauss_curl.py), coordinates are divided by S_i, calculated in the wake_expansion function in which sigma appears non-dimensional. The same is specified in the CC paper (https://doi.org/10.5194/wes-2022-17), which is logical to keep the exponent in Eq. (1) non-dimensional. At the same time, it seems to me that position variables x_i, y_i and z_i are specified with dimensions m in the solver. Is this intended ?

Best regards,

L. Dewitte