Backscattering problems by a non-convex kite-shape objects in acoustic frequency domain

This paper focuses on the acoustic backscattering from objects with non-convex shape in two-dimensional space. The scattering simulations are provided using the boundary integral formulation and Nystrom discretization in a single parameter approach. Several numerical examples covering three non-convex kite-shape cross sections and two wave numbers in acoustic domain are carried out to show the influence of shapes on acoustic scattering. Also, the material absorption properties are considered. The error on the accuracy of simulation results is considered in terms of wave numbers.This paper focuses on the acoustic backscattering from objects with non-convex shape in two-dimensional space. The scattering simulations are provided using the boundary integral formulation and Nystrom discretization in a single parameter approach. Several numerical examples covering three non-convex kite-shape cross sections and two wave numbers in acoustic domain are carried out to show the influence of shapes on acoustic scattering. Also, the material absorption properties are considered. The error on the accuracy of simulation results is considered in terms of wave numbers.