The wave processes in damp porous media saturated with gas are theoretically studied, taking into account inter-phase interaction forces of heat and mass exchange between the skeleton of the porous environment, the liquid and the gas. A dispersive relation is obtained, which is used to investigate the influence of the water film on the character of distribution of acoustic waves in the medium. Frequency ranges are specified in which the wave distribution is mostly influenced either by heat exchange, or by mass exchange processes.
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