Module spherical_tensor 

Isotropic diagonal tensor ii * I (SphericalTensor). Isotropic diagonal tensor (SphericalTensor) — an OpenFOAM primitive that stores only the single scalar ii of ii * I.

ii is a dimensionless f64. Because the tensor is a scalar multiple of the identity, its operations reduce to scalar arithmetic (trace 3*ii, determinant ii³, inverse 1/ii).

Structs

SphericalTensor

Isotropic diagonal tensor: represents ii * I where I is the 3×3 identity. Maps to Foam::SphericalTensor<scalar> (SphericalTensorI.H).

Functions

det

Determinant = ii³.

inv

Inverse = SphericalTensor(1/ii).

lerp

Linear interpolation (1-t)*a + t*b between two spherical tensors.

mag_sqr

Frobenius norm squared = 3*ii².

tr

Trace tr = 3*ii.