Struct Fluid

Source

pub struct Fluid {
    pub density: f64,
    pub dynamic_viscosity: Option<f64>,
}

Expand description

A simple fluid model with density and optional dynamic viscosity.

Fields§

§density: f64§dynamic_viscosity: Option<f64>

Implementations§

Source §

impl Fluid

Source

pub fn new(density: f64) -> Option<Self>

Creates a fluid from density when the density is non-negative and finite.

Source

pub fn with_dynamic_viscosity( density: f64, dynamic_viscosity: f64, ) -> Option<Self>

Creates a fluid from density and dynamic viscosity when both values are non-negative and finite.

Examples found in repository ?

examples/basic_usage.rs (line 6)

5fn main() {
6    let Some(water) = Fluid::with_dynamic_viscosity(1000.0, 0.001) else {
7        unreachable!("valid fluid inputs")
8    };
9    let Some(flow) = PipeFlow::new(2.0, 3.0) else {
10        unreachable!("valid pipe-flow inputs")
11    };
12
13    assert_eq!(flow.volumetric_flow_rate(), Some(6.0));
14    assert_eq!(flow.mass_flow_rate(water.density), Some(6000.0));
15    assert!(
16        water
17            .reynolds_number(2.0, 0.1)
18            .is_some_and(|reynolds| (reynolds - 200_000.0).abs() < 1.0e-9)
19    );
20    assert!(
21        drag_force(1.225, 10.0, 0.47, 1.0).is_some_and(|force| (force - 28.7875).abs() < 1.0e-9)
22    );
23}

Source

pub fn buoyant_force( &self, displaced_volume: f64, gravitational_acceleration: f64, ) -> Option<f64>

Computes buoyant force for a displaced volume in this fluid.

§Examples

use use_fluid::Fluid;

let water = Fluid::new(1000.0).unwrap();
let force = water.buoyant_force(0.01, 9.80665).unwrap();

assert!((force - 98.0665).abs() < 1.0e-10);

Source

pub fn hydrostatic_pressure( &self, gravitational_acceleration: f64, depth: f64, ) -> Option<f64>

Computes hydrostatic pressure at a depth in this fluid.

Source

pub fn dynamic_pressure(&self, velocity: f64) -> Option<f64>

Computes dynamic pressure for this fluid at a given velocity.

Source

pub fn reynolds_number( &self, velocity: f64, characteristic_length: f64, ) -> Option<f64>

Computes Reynolds number for this fluid when dynamic viscosity is available.

Examples found in repository ?

examples/basic_usage.rs (line 17)

5fn main() {
6    let Some(water) = Fluid::with_dynamic_viscosity(1000.0, 0.001) else {
7        unreachable!("valid fluid inputs")
8    };
9    let Some(flow) = PipeFlow::new(2.0, 3.0) else {
10        unreachable!("valid pipe-flow inputs")
11    };
12
13    assert_eq!(flow.volumetric_flow_rate(), Some(6.0));
14    assert_eq!(flow.mass_flow_rate(water.density), Some(6000.0));
15    assert!(
16        water
17            .reynolds_number(2.0, 0.1)
18            .is_some_and(|reynolds| (reynolds - 200_000.0).abs() < 1.0e-9)
19    );
20    assert!(
21        drag_force(1.225, 10.0, 0.47, 1.0).is_some_and(|force| (force - 28.7875).abs() < 1.0e-9)
22    );
23}