The propagation of a nonlinear sound wave in an unconsolidated granular medium
Source: Acoustical Physics, Volume 51, Number 6, November 2005 , pp. 713-718(6)
Publisher: MAIK Nauka/Interperiodica
Abstract:The propagation of a high-intensity sound wave in an unconsolidated medium is considered. Dissipation effects are taken into account on the basis of Buckingham’s theory of a relaxation mechanism of sound attenuation in a saturated sediment. The nonlinear evolution equation for the relaxing medium is obtained, and the solutions of this equation are analyzed. The second-harmonic generation in such a medium decays, as does the linear sound wave of the same frequency. The stationary weak shock profile has a specific form due to relaxation effects.
Document Type: Research Article
Publication date: November 2005