NeighborCoupleable
This class provides API for coupling different kinds of variables values into MOOSE systems which are performing computations on element internal sides. This class derives from Coupleable so it includes all the APIs for coupling in variable values in the local element. It add the following APIs for the variable values in the neighbor.
| Method | Description |
|---|---|
| coupledNeighborValue | Values of a coupled variable at neighbor q-points |
| coupledNeighborGradient | Gradients of a coupled variable at neighbor q-points |
| coupledNeighborSecond | Second derivatives of a coupled variable at neighbor q-points |
| adcoupledNeighborValue | Values of a coupled variable at neighbor q-points with automatic differentiation info |
| adcoupledNeighborGradient | Gradients of a coupled variable at neighbor q-points with automatic differentiation info |
| adcoupledNeighborSecond | Second derivatives of a coupled variable at neighbor q-points with automatic differentiation info |
For values, gradients and second derivatives, users can request old and older values in case they are running a transient simulation. In case of old and older values, the methods are called coupledNeighborValueOld and coupledNeighborValueOlder, respectively.
Other APIs
See the Coupleable documentation for:
checking whether a variable is coupled in
coupling in vector variables
accessing degrees-of-freedom values directly
writing to coupled variables