Title :
Correspondence - Perfectly matched layer stability in 3-D finite-difference time-domain simulation of electroacoustic wave propagation in piezoelectric crystals with different symmetry class
Author :
Nova, Omar ; Peña, NeÌstor ; Ney, Michel
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Los Andes, Bogota, Colombia
Abstract :
Perfectly matched layer stability in 3-D finite-difference time-domain simulations is demonstrated for two piezoelectric crystals: barium sodium niobate and bismuth germanate. Stability is achieved by adapting the discretization grid to meet a central-difference scheme. Stability is demonstrated by showing that the total energy of the piezoelectric system remains constant in the steady state.
Keywords :
acoustic wave propagation; acoustoelectric effects; barium compounds; bismuth compounds; finite difference time-domain analysis; piezoelectricity; sodium compounds; total energy; 3D finite-difference time-domain simulation; BaNaNbO3; BiGeO2; barium sodium niobate; bismuth germanate; central-difference scheme; discretization grid; electroacoustic wave propagation; perfectly matched layer stability; piezoelectric crystals; steady state; symmetry class; total energy; Bismuth; Finite difference methods; Numerical stability; Perfectly matched layers; Power system stability; Stability analysis; Time-domain analysis;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2014.006831
