A Hybrid Analytical-Numerical Model Based on the Method of Fundamental Solutions for the Analysis of Sound Scattering by Buried Shell Structures

Table 2

Response at the field point (𝑥=5 m; 𝑦=−2 m) when different numbers of collocation points are used and the distance from the virtual sources to the interface is 0.4 times the radius of the fictitious interface.

N	Real part	Imaginary part
10	−0.0124778	0.0189048
20	−0.0389532	0.0231320
30	−0.0392874	0.0235757
40	−0.0392905	0.0235811
50	−0.0392906	0.0235813
60	−0.0392906	0.0235813
70	−0.0392906	0.0235813