Name
Title | ||
|---|---|---|
Extending the stability limit of explicit scheme with spatial filtering for solving wave equations. |
Abstract | ||
|---|---|---|
The explicit finite-difference scheme is widely used for solving the wave equation; however, its time step is strictly constrained by the Courant-Friedrichs-Lewy (CFL) stability limit. We apply spatial filtering to reduce the high-wavenumber noise caused by using a larger time step beyond the CFL stability limit. We further incorporate the forward and inverse time dispersion transforms to reduce the time-dispersion error. This method allows us to use a time step larger than the maximum time step allowed by the CFL stability limit. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1016/j.jcp.2019.07.051 | Journal of Computational Physics |
Keywords | Field | DocType |
Explicit scheme,Spatial filtering,CFL stability limit,Time-dispersion error,Large time step | Dispersion (optics),Inverse,Mathematical analysis,Wave equation,Mathematics,Spatial filter | Journal |
Volume | ISSN | Citations |
397 | 0021-9991 | 0 |
PageRank | References | Authors |
0.34 | 0 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yingjie Gao | 1 | 2 | 1.01 |
| Jinhai Zhang | 2 | 17 | 3.41 |
| Yao Zhenxing | 3 | 19 | 4.03 |