Archives of Acoustics, 13, 1-2, pp. 157-189, 1988

Half-plane edge and right angle wedge as elements causing diffraction in urban area

Elżbieta Walerian
Institute of Fundamental Technological Research, Polish Academy of Sciences

This study analyzed the acoustic fields generated by interactions between acoustic waves and the edge of a half plane and a right angle wedge. Using known solutions of the diffraction of a monochromatic wave on a half-plane and a right angle wedge, they were written in a form permitting simultaneous analysis of three wave types: plane, cylindrical and spherical. Approximate forms of solutions were adopted and the ranges of tHir applicability analyzed. In the space around the chosen obstacle, its efficiency was calculated with respect to a free Geld, for wavelengths and distances of interest in urban acoustics.
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