2006年
反変速度-圧力交互時間進行による一般曲線座標系FDTD音場解析手法
日本建築学会環境系論文集
- 巻
- 71
- 号
- 599
- 開始ページ
- 9
- 終了ページ
- 15
- 記述言語
- 日本語
- 掲載種別
- DOI
- 10.3130/aije.71.9_1
- 出版者・発行元
- 日本建築学会
Finite-difference time-domain (FDTD) acoustic simulation technique in generalized curvilinear coordinates using contravariant velocity and pressure as variables for two-step leapfrog time marching scheme is presented. The technique excels the conventional generalized curvilinear technique using contravariant velocity, covariant velocity and pressure as variables for three-step time marching, especially in that normal acoustic impedance boundary conditions which are indispensable in practical application are also presented. Validation of the technique through comparison against orthogonal FDTD with staircasing applied in irregularly-shaped sound field shows suppressions of phase error in initial time marching stage and diffusion from staircased boundaries.
- リンク情報
-
- DOI
- https://doi.org/10.3130/aije.71.9_1
- CiNii Articles
- http://ci.nii.ac.jp/naid/110004788047
- CiNii Books
- http://ci.nii.ac.jp/ncid/AA11830377
- ID情報
-
- DOI : 10.3130/aije.71.9_1
- ISSN : 1348-0685
- CiNii Articles ID : 110004788047
- CiNii Books ID : AA11830377
- identifiers.cinii_nr_id : 1000040332647