| Autor: |
Bass HE; The Jamie L. Whitten National Center for Physical Acoustics, University of Mississippi, University 38677, USA., Raspet R, Chambers JP, Kelly M |
| Jazyk: |
angličtina |
| Zdroj: |
The Journal of the Acoustical Society of America [J Acoust Soc Am] 2002 Jan; Vol. 111 (1 Pt 2), pp. 481-6. |
| DOI: |
10.1121/1.1404375 |
| Abstrakt: |
A number of physical processes work to modify the shape of sonic boom wave forms as the wave form propagates from the aircraft to a receiver on the ground. These include frequency-dependent absorption, nonlinear steepening, and scattering by atmospheric turbulence. In the past two decades, each of these effects has been introduced into numerical prediction algorithms and results compared to experimental measurements. There is still some disagreement between measurements and prediction, but those differences are now in the range of tens of percent. The processes seem to be understood. The present understanding of sonic boom evolution will be presented along with experimental justification. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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