Numerical Simulation of Wave Propagation and Scattering in an Inhomogeneous Medium

Padhy, VP and Negi, YK and Balakrishnan, N (2018) Numerical Simulation of Wave Propagation and Scattering in an Inhomogeneous Medium. In: 2018 IEEE Indian Conference on Antennas and Propagation, InCAP 2018, 16 - 19 December 2018, Hyderabad.

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Abstract

In this paper, a rigorous numerical technique of atmospheric wave propagation and scattering from an inhomogeneous medium is considered and simulated using Integral Equation in conjunction with Method of Moments. The inhomogeneous medium is the result of flow over an aircraft, which calls for the numerical solution of multiphysics and multiscale problem governed by Euler equations describing the acoustics/fluid-dynamics and Maxwell's equations for electromagnetic wave propagation. An important relation between flow inhomogeneities and the direction of incident electromagnetic field is presented by solving numerically the Volume-Surface Integral Equation and spatiotemporal scattering is discussed. The method presented here can also be easily adapted to many important problems in electromagnetics and scattering from large complex shaped inhomogeneous bodies such as biological systems.

Item Type:	Conference Paper
Publication:	2018 IEEE Indian Conference on Antennas and Propagation, InCAP 2018
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	Acoustics; Aircraft accidents; Electromagnetic fields; Electromagnetic wave propagation; Maxwell equations; Method of moments; Numerical methods; Radar cross section, Atmospheric waves; Inhomogeneous body; Inhomogeneous medium; Method of moments (MOM); Multiscale problem; Numerical solution; Numerical techniques; Volume surface integral equations, Integral equations
Department/Centre:	Division of Interdisciplinary Sciences > Supercomputer Education & Research Centre
Date Deposited:	01 Aug 2022 09:23
Last Modified:	01 Aug 2022 09:23
URI:	https://eprints.iisc.ac.in/id/eprint/75115

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