Domain and Boundary Nodes for the Wall Distance Interface

The Wall Distance Interface has these domain settings and boundary conditions available:

• Distance Equation • Initial Values • Periodic Condition

• Wall • Wall Distance Continuity

The default boundary condition, a homogeneous Neumann condition, applies to all boundaries that are not walls: This node does not display in the model tree.

For axisymmetric models, COMSOL Multiphysics automatically takes the axial symmetry boundaries (at r = 0) into account, and prohibits the wall boundary node from being defined here.

Working with Geometric Entities