venuss 0.0.3

Venus celestial simulation crate for the MilkyWay SolarSystem workspace
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

use sciforge::hub::domain::astronomy::celestial::{gravitational_force, tidal_force};
use sciforge::hub::domain::common::constants::{AU, G, SOLAR_MASS};

pub const VENUS_MASS: f64 = crate::VENUS_MASS;
pub const VENUS_RADIUS: f64 = crate::VENUS_RADIUS;
pub const SEMI_MAJOR_AXIS: f64 = crate::SEMI_MAJOR_AXIS_AU * AU;

pub struct SolarTide {
    pub distance_m: f64,
}

impl SolarTide {
    pub fn at_mean_distance() -> Self {
        Self {
            distance_m: SEMI_MAJOR_AXIS,
        }
    }
    pub fn at_perihelion() -> Self {
        Self {
            distance_m: SEMI_MAJOR_AXIS * (1.0 - crate::ECCENTRICITY),
        }
    }
    pub fn at_aphelion() -> Self {
        Self {
            distance_m: SEMI_MAJOR_AXIS * (1.0 + crate::ECCENTRICITY),
        }
    }
    pub fn at_distance(distance_m: f64) -> Self {
        Self { distance_m }
    }

    pub fn tidal_acceleration(&self) -> f64 {
        tidal_force(SOLAR_MASS, self.distance_m, VENUS_RADIUS)
    }

    pub fn tidal_bulge_height(&self) -> f64 {
        let g_surface = G * VENUS_MASS / (VENUS_RADIUS * VENUS_RADIUS);
        self.tidal_acceleration() * VENUS_RADIUS / g_surface
    }

    pub fn gravitational_force(&self) -> f64 {
        gravitational_force(SOLAR_MASS, VENUS_MASS, self.distance_m)
    }
}

pub fn perihelion_aphelion_tide_ratio() -> f64 {
    let peri = SolarTide::at_perihelion();
    let aph = SolarTide::at_aphelion();
    peri.tidal_acceleration() / aph.tidal_acceleration()
}