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High-speed research: 1994 sonic boom workshop: atmospheric propagation and acceptability studies
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Editor | McCurdy, David A. |
| Copyright Year | 1994 |
| Description | The workshop proceedings include papers on atmospheric propagation and acceptability studies. Papers discussing atmospheric effects on the sonic boom waveform addressed several issues. It has long been assumed that the effects of molecular relaxation are adequately accounted for by assuming that a steady state balance between absorption and nonlinear wave steepening exists. It was shown that the unsteadiness induced by the nonuniform atmosphere precludes attaining this steady state. Further, it was shown that the random atmosphere acts as a filter, effectively filtering out high frequency components of the distorted waveform. Several different propagation models were compared, and an analysis of the sonic boom at the edge of the primary carpet established that the levels there are bounded. Finally, a discussion of the levels of the sonic boom below the sea surface was presented. |
| File Size | 9728247 |
| Page Count | 224 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950008464 |
| Archival Resource Key | ark:/13960/t4tj3fc85 |
| Language | English |
| Publisher Date | 1994-10-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Extrapolation Atmospheric Effects Conferences High Speed Waveforms Aerodynamic Noise Sonic Booms High Frequencies Molecular Relaxation Acceptability Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
