| タイトル | Effects of grazing flow on the steady-state flow resistance and acoustic impedance of thin porous-faced liners |
| 本文（外部サイト） | http://hdl.handle.net/2060/19780009879 |
| 著者（英） | Walker, B.; Hersh, A. S. |
| 著者所属（英） | Hersh Acoustical Engineering, Inc. |
| 発行日 | 1978-01-01 |
| 言語 | eng |
| 内容記述 | The effects of grazing flow on the steady state flow resistance and acoustic impedance of seven Feltmetal and three Rigimesh thin porous faced liners were studied. The steady-state flow resistance of the ten specimens was measured using standard fluid mechanical experimental techniques. The acoustic impedance was measured using the two microphone method. The principal findings of the study are that the effects of grazing flow were measured and found to be small; small differences were measured between steady-state and acoustic resistance, and a semi-empirical model was derived that correlated the steady-state resistance data of the seven Feltmetal liners and the face sheet reactance of both the Feltmetal and Rigimesh liners. |
| NASA分類 | ACOUSTICS |
| レポートNO | 78N17822
NASA-CR-2951 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/179855 |
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