COMSOL 6.3 - Sound Hard Boundary (Wall)

Sound Hard Boundary (Wall)

The adds a boundary condition for a sound hard boundary or wall. This is a boundary where the normal component of the acceleration is zero, such that

For zero dipole source and constant fluid density, this means that the normal derivative of the pressure is zero at the boundary

Sound hard boundaries are available for all study types. Note that this condition is identical to the Symmetry condition.