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Linear equations for heterogeneous acoustic media. (English) Zbl 0784.76086

Summary: Motivated by some questionable points in standard forms of the differential equations of linear acoustics, the paper develops a careful derivation of the equations for a heterogeneous, compressible fluid. The body force is also taken into account. Comparison with some works on the subject is performed in detail.

MSC:

76Q05 Hydro- and aero-acoustics
76N10 Existence, uniqueness, and regularity theory for compressible fluids and gas dynamics

Keywords:

body force
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