@ARTICLE{Khalilabadi_Mohammad_Reza_2D_2022, author={Khalilabadi, Mohammad Reza}, volume={vol. 47}, number={No 3}, journal={Archives of Acoustics}, pages={407-412}, howpublished={online}, year={2022}, publisher={Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics}, abstract={In this paper, a 2D numerical modeling of sound wave propagation in a shallow water medium that acts as a waveguide, are presented. This modeling is based on the method of characteristic which is not constrained by the Courant–Friedrichs–Lewy (CFL) condition. Using this method, the Euler time-dependent equations have been solved under adiabatic conditions inside of a shallow water waveguide which is consists of one homogeneous environment of water over a rigid bed. In this work, the stability and precision of the method of characteristics (MOC) technique for sound wave propagation in a waveguide were illustrated when it was applied with the semi-Lagrange method. The results show a significant advantage of the method of characteristics over the finite difference time domain (FDTD) method.}, type={Article}, title={2D Modeling of Wave Propagation in Shallow Water by the Method of Characteristics}, URL={http://www.czasopisma.pan.pl/Content/124250/PDF/aoa.2022.142014.pdf}, doi={10.24425/aoa.2022.142014}, keywords={wave propagation, shallow water, MOC method, waveguide, transmission loss}, }