| タイトル | Design curves for circular and annular duct silencers |
| 著者（英） | Watson, Willie R.; Ramakrishnan, R. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1989-01-01 |
| 言語 | eng |
| 内容記述 | Conventional models of sound propagation between porous walls (Scott, 1946) are adapted in order to calculate design curves for the lined circular and annular-duct silencers used in HVAC systems. The derivation of the governing equations is outlined, and results for two typical cases are presented graphically. Good agreement with published experimental data is demonstrated. |
| NASA分類 | ACOUSTICS |
| レポートNO | 91A28275 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/349621 |
