Struct Tank 

pub struct Tank {
    pub min_level: f64,
    pub max_level: f64,
    pub initial_level: f64,
    pub diameter: f64,
    pub min_volume: f64,
    pub volume_curve: Option<String>,
    pub mix_model: MixModel,
    pub mix_fraction: f64,
    pub bulk_coeff: f64,
    pub overflow: bool,
    pub head_pattern: Option<String>,
}

A storage node whose head evolves over time (§2.4.4).

Fields

min_level: f64

Minimum operating level above bottom elevation (m).

max_level: f64

Maximum operating level above bottom elevation (m).

initial_level: f64

Initial water level above bottom elevation (m).

diameter: f64

Diameter of cylindrical tank (m); used when vol_curve is None.

min_volume: f64

Explicit minimum volume (m³); if > 0, overrides the value computed from diameter and min_level.

volume_curve: Option<String>

Optional volume curve ID (kind = TankVolume).

mix_model: MixModel

Water mixing model used inside this tank.

mix_fraction: f64

Inlet-zone volume fraction; meaningful only for TwoCompartment.

bulk_coeff: f64

Bulk reaction rate coefficient (overrides global).

overflow: bool

Whether tank can overflow (spill above max_level).

head_pattern: Option<String>

Optional pattern ID modulating head over time for fixed-head operation.

Implementations

impl Tank

pub fn bottom_elevation(&self, node_elevation: f64) -> f64

Bottom elevation = node elevation − min_level (§2.4.4).

pub fn head_from_level(&self, node_elevation: f64, level: f64) -> f64

Hydraulic head from the current level (§2.4.4).

$H = \text{bottom_elevation} + \text{level}$

pub fn area(&self, level: f64, curves: &[Curve]) -> f64

Cross-section area $A$ at the given level (§2.4.4).

• Cylindrical tank: $A = \pi d^2 / 4$ (constant).
• Volume-curve tank: $A(h) = dV/dh$ approximated at level via the finite-difference slope of the two bracketing curve points.

curves is the full network curve table; vol_curve is resolved by ID.

pub fn volume_from_level(&self, level: f64, curves: &[Curve]) -> f64

Volume corresponding to level using the volume curve (§2.4.4), or the cylindrical approximation when no curve is present.

pub fn level_from_volume(&self, volume: f64, curves: &[Curve]) -> f64

Level corresponding to volume (inverse of volume_from_level).

For cylindrical tanks: $h = V / A$. For volume-curve tanks: binary-search the curve for the bracketing segment and invert the linear segment.

Trait Implementations

impl Clone for Tank

fn clone(&self) -> Tank

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tank

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

Formats the value using the given formatter.