Enum Atmosphere 

pub enum Atmosphere {
    Standard {
        station_altitude_m: f64,
        temperature_c: f64,
        pressure_hpa: f64,
        humidity_percent: f64,
    },
    Uniform {
        density_kg_m3: f64,
        speed_of_sound_mps: f64,
    },
}

Atmospheric inputs supported by the upstream derivative kernel.

Variants

Standard

Station measurements; the upstream model applies its local altitude lapse. Humidity affects station density; this derivative path uses dry-air sound speed.

Fields

station_altitude_m: f64

Elevation of the weather station above sea level, in metres.

temperature_c: f64

Station temperature in degrees Celsius (greater than absolute zero).

pressure_hpa: f64

Positive station pressure in hectopascals.

humidity_percent: f64

Relative humidity as a percentage in [0, 100].

Uniform

Constant density and sound speed, independent of position. Upstream’s direct-mode sentinel requires 0 <= density < 2 and sound speed > 200.

Fields

density_kg_m3: f64

Air density in kilograms per cubic metre; zero disables drag.

speed_of_sound_mps: f64

Sound speed in metres per second.

Implementations

impl Atmosphere

pub fn icao_standard(station_altitude_m: f64) -> Result<Self>

A dry station at station_altitude_m above sea level reading the ICAO standard atmosphere for that altitude. Air at every altitude is then the standard atmosphere’s, whatever the station altitude, so a launch site at elevation E flies through standard air with its station (and any atmosphere zones, which are readings at the station) at E.

At 0 m this equals Atmosphere::default exactly. The altitude must be finite and within the troposphere, -1000 to 11000 m. Temperature follows the ICAO lapse of 6.5 K per kilometre of geopotential height; pressure is upstream’s reduce_qnh_to_station_pressure of the 1013.25 hPa standard sea-level pressure.

Trait Implementations

impl Clone for Atmosphere

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Atmosphere

impl Debug for Atmosphere

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Atmosphere

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Atmosphere

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Atmosphere