Green function for the problem of sound radiation by a circular sound source located near two-wall corner and three-wall corner

The construction of the Green functions for the Neumann boundary value problems of the
Helmholtz equation at the two-wall corner and the three-wall corner has been described. The
Green functions have been expressed in their Fourier representation and have been used for
computations of the radiation sound pressure of a flat circular source located in one of the
two rigid baffles of the two-wall corner and in one of the three rigid baffles of the three-wall
corner.