An Optimal Fourth-Order Finite Difference Scheme for the Helmholtz Equation Based on the Technique of Matched Interface Boundary
Dongsheng Cheng, Jianjun Chen, Guangqing Long • Discrete Dynamics in Nature and Society
(2021)
In this paper, a new optimal fourth-order 21-point finite difference scheme is proposed to solve the 2D Helmholtz equation numerically, with the technique of matched interface boundary (MIB) utilized to treat boundary problems. For the appr...
DOAJ
Open Access (DOAJ)
DOI:
10.1155/2021/2539272