A Numerical Model for Point Source Scattering from an Impedance Cylinder Placed Normal to an Impedance Plane

A semi-analytic model that couples acoustic propagation over an impedance plane and scattering from an semiinfinite right cylinder with finite impedance placed normal to the impedance plane is developed mathematically and verified with benchmark cases. Model output is found to be sensitive to large changes in temperature. Large changes in non-rigid ground and cylinder impedances also significantly impact results. The model is only valid near the impedance boundary. Minimum numbers of integration points and summation terms are determined.