Struct FvVectorMatrix 

pub struct FvVectorMatrix {
    pub mesh: Arc<FvMesh>,
    pub ldu: LduMatrix,
    pub source: Field<Vector3>,
}

Implicit vector equation A·U = b for a VolVectorField.

Mirrors Foam::fvVectorMatrix (fvMatrix<vector>).

The LDU coefficients are scalar — they multiply the entire velocity vector equally in all three directions. The source vector is a Field<Vector3>. Solving decomposes into three independent scalar Gauss-Seidel solves (one per component).

Fields

mesh: Arc<FvMesh>

Mesh the equation is defined on (shares the face addressing).

ldu: LduMatrix

Scalar LDU coefficients of the operator A (shared by all 3 components).

source: Field<Vector3>

Right-hand-side vector source per cell, length n_cells.

Implementations

impl FvVectorMatrix

pub fn new(mesh: Arc<FvMesh>) -> Self

Allocate a zero-initialised vector matrix for mesh (zero coefficients, zero source).

pub fn add_to_diag(&mut self, coeff: &Field<f64>)

Add coeff[c] to the diagonal of cell c (e.g. a time-derivative term).

pub fn add_to_source(&mut self, term: &Field<Vector3>)

Add term[c] to the vector source of cell c.

pub fn set_reference(&mut self, cell: usize, value: Vector3)

Pin one cell’s velocity to a fixed value (reference cell for closed domains).

pub fn a_field(&self) -> VolScalarField

Diagonal coefficient per cell: A[c] = diag[c].

Used in PISO: rAU = 1 / UEqn.a_field().

pub fn h_field(&self, u: &VolVectorField) -> VolVectorField

Off-diagonal + source residual: H[c] = source[c] − Σ off-diag · U.

For a zero field x this returns source[c] directly. Used in PISO: HbyA = rAU * UEqn.h_field(U).

pub fn solve( &self, name: &str, settings: SolverSettings, ) -> (VolVectorField, SolverPerformance)

Solve each component (x, y, z) as an independent scalar Gauss-Seidel problem.

Trait Implementations

impl Add for FvVectorMatrix

type Output = FvVectorMatrix

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self

Performs the + operation.

impl AddAssign for FvVectorMatrix

fn add_assign(&mut self, rhs: Self)

Performs the += operation.

impl Clone for FvVectorMatrix

fn clone(&self) -> FvVectorMatrix

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FvVectorMatrix

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

Formats the value using the given formatter.

impl Neg for FvVectorMatrix

type Output = FvVectorMatrix

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl Sub for FvVectorMatrix

type Output = FvVectorMatrix

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Self

Performs the - operation.

impl SubAssign for FvVectorMatrix

fn sub_assign(&mut self, rhs: Self)

Performs the -= operation.