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- 大嶋 拓也
- 新潟大学工学部
書誌事項
- タイトル別名
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- FINITE-DIFFERENCE TIME-DOMAIN ACOUSTIC SIMULATION TECHNIQUE IN GENERALIZED CURVILINEAR COORDINATES USING CONTRAVARIANT VELOCITY AND PRESSURE FOR LEAPFROG TIME MARCHING
- ハンペン ソクド アツリョク コウゴ ジカン シンコウ ニ ヨル イッパン キョクセン ザヒョウケイ FDTD オンバ カイセキ シュホウ
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抄録
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.
収録刊行物
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- 日本建築学会環境系論文集
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日本建築学会環境系論文集 71 (599), 9-15, 2006
日本建築学会
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キーワード
詳細情報
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- CRID
- 1390282680179496576
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- NII論文ID
- 110004788047
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- NII書誌ID
- AA11830377
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- ISSN
- 1881817X
- 13480685
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- HANDLE
- 10191/18375
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- NDL書誌ID
- 7787358
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可