reskit.wind.core.air_density_adjustment

reskit.wind.core.air_density_adjustment#

Functions#

apply_air_density_adjustment(wind_speed, pressure, ...)

Applies air density corrections to the wind speed values following suggestions by the IEC 61400-12-1:2017 [1].

Module Contents#

reskit.wind.core.air_density_adjustment.apply_air_density_adjustment(wind_speed, pressure, temperature, height=0)#

Applies air density corrections to the wind speed values following suggestions by the IEC 61400-12-1:2017 [1].

Parameters:

  • wind_speed (float or array-like) – The wind speed values in m/s.

  • pressure (float or array-like) – Air preassure in Pa.

  • temperature (float or array-like) – Air temperature in degree Celsius.

  • height (float or array-like, optional) – The (hub) height of that the air density is going to be adjusted to in m, by default 0

Returns:

The air density corrected wind speed in m/s at the given height.

Return type:

numeric or array-like

Notes

Ideal gas equation applied since it is nearly equivalent to a real-gas equation at humidity = 0, and humidity does not have a significant impact until high temperatures are considered. Pressure projection using barometric equation and density correction from assuming equal energy in the wind.

References

[1] International Electrotechnical Commission (ICE). (2017). IEC 61400-12-1:2017 (p. 558). https://webstore.iec.ch/publication/26603