Abstract
Various wave energy and wave momentum conservation laws are established by analyzing the analogy between the propagation of sound in a nonhomogeneous potential flow and the propagation of a scalar field in curved space-time. The acoustic energy conservation law due to Blokhintsev is analyzed as a result of the conservation of a mixed covariant and contravariant energy-momentum tensor. This is while the relative energy between the wave and mean flow appears as the covariant conservation of the doubly contravariant form of the same energy-momentum tensor.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1341-1350 |
| Number of pages | 10 |
| Journal | Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics |
| Volume | 62 |
| Issue number | 1 B |
| DOIs | |
| State | Published - Jul 2000 |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics