Function sph

src/OpenFOAM/primitives/Tensor/TensorI.H:509–512

//- Return the spherical part of a tensor
template<class Cmpt>
inline SphericalTensor<Cmpt> sph(const Tensor<Cmpt>& t)
{
    return (1.0/3.0)*tr(t);
}


//- Return the symmetric part of a tensor