Abstract
Two approaches involving the spatial and temporal Fourier transforms have been used to derive time- and space-dependent Green's functions pertinent to the propagation of sound waves in a fluid that is moving with a constant velocity v. The two approaches give rise to differing interpretations of the observations made by a stationary observer vis--vis those made by an observer moving with the fluid. The properties of the causal and the noncausal Green's functions are analyzed, and are shown to be equivalent.
Original language | English (US) |
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Pages (from-to) | 1852-1856 |
Number of pages | 5 |
Journal | Journal of the Acoustical Society of America |
Volume | 85 |
Issue number | 5 |
DOIs | |
State | Published - May 1989 |
All Science Journal Classification (ASJC) codes
- Arts and Humanities (miscellaneous)
- Acoustics and Ultrasonics