Date of Award
January 2015
Degree Type
Thesis
Degree Name
Master of Science in Engineering (MSE)
Department
Mechanical Engineering
First Advisor
Kai Ming Li
Committee Member 1
Kai Ming Li
Committee Member 2
Marcial Gonzalez
Committee Member 3
Ganesh Subbarayan
Abstract
The Boundary Element Method (BEM) is widely used in outdoor sound scattering prob-lems due to its computational efficiency when compared to the FEM (FEM) for certain propagation geometries. The advantage of the BEM is apparent for problem geometries where the scattering surface is much smaller than the computational domain of the prob-lem. The Green's function can be used in the BEM formulation to represent a non-locally reacting porous ground surface. The Weyl Van der Pol formula is often used to accurately calculate the Green's functions above a locally reacting surface. However, the Green’s function representation for the sound field above and below a non-locally reacting ground has not yet been established. Nevertheless, the steepest descent method can be used to derive these functions.
Recommended Citation
Wang, Yiming, "SOUND SCATTERING OF AN OBSTACLE PLACED NEAR A NON-LOCALLY REACTING GROUND" (2015). Open Access Theses. 1181.
https://docs.lib.purdue.edu/open_access_theses/1181