Spa Carvajal, CarlosMateos Solé, ToniGarriga Torres, Adán Amor2011-07-272011-07-272009Spa C, Mateos T, Garriga A. Methodology for Studying the Numerical Speed of Sound in Finite Differences Schemes. Acta Acustica united with Acustica. 2009;95(4):690-5(6). DOI 10.3813/AAA.9181971610-1928http://hdl.handle.net/10230/12420The space and time discretization inherent to all FDTD schemes/nintroduce non-physical dispersion errors, i.e. deviations of/nthe speed of sound from the theoretical value predicted by/nthe governing Euler differential equations. A generalmethodology/nfor computing this dispersion error via straightforward/nnumerical simulations of the FDTD schemes is presented./nThe method is shown to provide remarkable accuracies/nof the order of 1/1000 in a wide variety of twodimensional/nfinite difference schemes.application/pdfeng© S. Hirzel Verlag (SHV)So -- Informàticainfo:eu-repo/semantics/articlehttp://dx.doi.org/10.38113/AAA.918197info:eu-repo/semantics/openAccess