DivField

!syntax description /Kernels/DivField

Overview

!style halign=left The DivField object implements the following PDE term for coupled scalar-vector PDE systems:

\begin{equation} \nabla \cdot \vec{u}, \end{equation}

where $\vec{u}$ is a vector field variable. Given scalar test functions $\psi_i$, the weak form, in inner-product notation, is given by:

\begin{equation} R_i(\vec{u}) = (\psi_i, \nabla \cdot \vec{u}) \quad \forall \psi_i. \end{equation}

!listing coupled_electrostatics.i block=Kernels/divergence

!syntax parameters /Kernels/DivField

!syntax inputs /Kernels/DivField

!syntax children /Kernels/DivField