A staggered time integrator for the linear acoustic wave equation using the Jacobi-Anger expansion

• Published in: Journal of computational physics Vol. 416; p. 109489
• Main Authors: Lee, Jaejoon, Park, Yoonseo, Park, Hyunseo, Shin, Changsoo, Chung, Wookeen
• Format: Journal Article
• Language: English
• Published: Cambridge Elsevier Inc 01.09.2020; Elsevier Science Ltd
• Subjects: Accuracy; Acoustic waves; Computational efficiency; Computational physics; Computer simulation; Computing costs; Design parameters; Domains; Jacobi-Anger expansion; Lax-Wendroff method; Linear acoustic wave equation; Mathematical models; Pseudospectral method; Spectral methods; Staggered time integrator; Strategy; Trigonometric functions; Wave equations; Wave propagation; Wavelengths; Jacobi-Anger expansion; Linear acoustic wave equation; Staggered time integrator; Pseudospectral method

•Two-stage staggered time integrator with the Jacobi-Anger expansion is introduced.•The method can be twice as faster than the Taylor expansion based time integrator.•Accuracy condition is obtained to bound error of the solution within a preset level.•Optimal strategy for the method is to use allowa...