Acoustics of porous-elastic fluid saturated medium (an overview of the Biot theory)

The overview provides the basic elements of the Biot theory for acoustics of porous fluid saturated media. The theory is valid and for actually porous and for granular structures. The coupled equations of motion in frequency-spatial domain are given, which allow to calculate the various fields describing the dynamics of the harmonic problems of acoustics of porous media. All the data, allowing to put and solve the corresponding boundary value problems are given. Held fairly comprehensive bibliographic review, which allows if necessary yourself to add not covered in the review elements of the Biot theory. The theory allows to solve, among them various problems of analytical instrumentation.