Module wind 

Mean wind models: constant, power law, logarithmic law and tabulated layers.

Conventions (docs/physics/wind.md):

• A wind model returns the velocity of the air in the launch frame’s East-North-Up axes, m/s. Mean wind is horizontal, so the up component is zero.
• Directions are meteorological: the direction the wind blows from, clockwise from true north, in radians. A 10 m/s wind from the west (3π/2) has velocity (+10, 0, 0):

v_E = −V sin θ_from,    v_N = −V cos θ_from

• Models are queried with the geometric height above mean sea level, like the atmosphere (crate::Atmosphere). Laws written in height above ground carry the ground’s height.

Turbulence is separate: see crate::dryden.

Structs

ConstantWind

The same wind at every height.

LayeredWind

A wind tabulated at levels, such as a sounding or a forecast, interpolated between them.

LogLawWind

A wind whose speed follows the neutral logarithmic law above ground, from one direction:

PowerLawWind

A wind whose speed grows with height above ground as a power law, from one direction:

WindLevel

One level of a LayeredWind.

WindSample

A wind velocity and whether the model extrapolated to produce it.

Enums

WindInterpolation

How a LayeredWind fills in between its levels.

WindModel

Any of the mean wind models, tagged by model when serialized.

Traits

Wind

A mean wind model: the wind velocity as a function of height.

Functions

velocity_from_speed_direction

East-North-Up velocity of a horizontal wind of speed_m_s blowing from direction_from_rad.