A three-dimensional coupled-mode model for the acoustic field in a two-dimensional waveguide with perfectly reflecting boundaries
Luo Wen-Yu1, †, 
, Yu Xiao-Lin1, 2, Yang Xue-Feng2, 3, Zhang Ze-Zhong1, 2, Zhang Ren-He1
, Yu Xiao-Lin1, 2, Yang Xue-Feng2, 3, Zhang Ze-Zhong1, 2, Zhang Ren-He1 Schematic diagram of the 3D problem involving a waveguide with a planar 2D geometry and a point source. The surface is pressure-release and the bottom is pressure-release or rigid.
