Effect of smoothing of a finite wedge-shaped object on the scattering characteristics of a plane wave. Part II. Analysis of numerical results
DOI:
https://doi.org/10.17721/1812-5409.2025/2.12Keywords:
inverse scattering cross section, partial domains method, plane wave, point conjugation of fieldsAbstract
This article is the second part of the work (Grinchenko, Lebedyeva, & Matsypura, 2024), which is devoted to the problem of scattering of a plane harmonic wave on a finite wedge-shaped object with a smoothed surface (in other words, with rounding). Such an object represents a simplified model of an aircraft wing profile. For this model, based on the solution obtained within the limits of the partial domains method, an expression for the inverse scattering cross section is determined. An example of the fulfillment of boundary conditions at the boundary of partial domains is given. Plots of the backscattering cross-section were constructed for different rounding radii of the front edge of the model profile and different conductivities of the rounding surface. It is shown that the backscattering cross-section significantly depends on the radius of the profile rounding and the normal conductivity of the rounding surface. In this case, covering the smoothing surface with an absorbing material significantly reduces, in a certain range of wave incidence angles, the scattered field of the object. The developed numerical-analytical solution makes it possible to perform approximate calculations of the backscattering cross section of the object under variation of its geometric and physical parameters over a wide range.
Pages of the article in the issue: 91 - 94
Language of the article: Ukrainian
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Copyright (c) 2025 Viktor Grinchenko, Iryna Lebedyeva, Volodymyr Matsypura, Tihomir Trifonov
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