Advection Physics Documentation
This module evaluates the residual for the constant-coefficient advection equation
\[\frac{\partial q}{\partial t} = - \boldsymbol{a} \cdot \frac{\partial q}{\partial \boldsymbol{x}} + S\]
where $\boldsymbol{a}$ is the vector of advection velocities in the x, y, and z directions, $\boldsymbol{x}$ is the vector and x, y, and z directions, and $S$ is the source term.
This weak form of the equation is discretized as described in the Introduction.