| タイトル | Sound transmission through a high-temperature acoustic probe tube |
| 著者（英） | Zorumski, William E.; Parrott, Tony L. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1990-10-01 |
| 言語 | eng |
| 内容記述 | An investigation was conducted of acoustic transmission through a tube subjected to an intense thermal gradient along its axis. The results are of interest in the interpretation of acoustic data from probe tube configurations designed to measure fluctuating pressures in high temperature environments. The measured transfer function across a localized heated region in the tube was compared to a computed transfer function based on a theoretical analysis of propagation through strong temperature gradients. Over the frequency range 0.4 kHz to 6.0 kHz, generally good agreement was obtained between the measured and calculated attenuation across the heated region with some discrepancy occurring at the attenuation minima. Agreement between measured and calculated phase difference was excellent to within the measurement resolution. |
| NASA分類 | ACOUSTICS |
| レポートNO | 91A12504
AIAA PAPER 90-3991 |
| 権利 | Copyright |
