| タイトル | Matrix-based, finite-difference algorithms for computational acoustics |
| 著者（英） | Davis, Sanford |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1990-10-01 |
| 言語 | eng |
| 内容記述 | A compact numerical algorithm is introduced for simulating multidimensional acoustic waves. The algorithm is expressed in terms of a set of matrix coefficients on a three-point spatial grid that approximates the acoustic wave equation with a discretization error of O(h exp 5). The method is based on tracking a local phase variable and its implementation suggests a convenient coordinate splitting along with natural intermediate boundary conditions. Results are presented for oblique plane waves and compared with other procedures. Preliminary computations of acoustic diffraction are also considered. |
| NASA分類 | ACOUSTICS |
| レポートNO | 91A12458
AIAA PAPER 90-3942 |
| 権利 | Copyright |
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