Abstract
Starting with a historical review of geometrical acoustics, a treatment of acoustic wave propagation is given including the effects of temperature and wind gradients. Analytical solutions of the wave equation are presented for an isothermally and a polytropically stratified still atmosphere and for an atmosphere with wind gradients and wind direction changes as well. These solutions are valid beyond the scope of geometrical acoustics. Finally, dispersion of infrasound is dealt with.
| Original language | English |
|---|---|
| Pages (from-to) | 3. 1-3. 19 |
| Journal | AGARD Report |
| Issue number | 686 |
| State | Published - 1979 |
ASJC Scopus subject areas
- General Engineering