Some Aspects of Sound Propagation in Porous Medium
The new properties of nonlinear sound propagation in one-dimensional porous medium are presented. For this purpose the one-dimensional equation of nonlinear and nonlocal sound propagation is derived. Its limiting cases are analyzed; the respective asymptotic solutions are shown. The dependence of sound velocity on the dimension of cellular space has been established.
Nin Bizys, Andrejus Henrikas Marcinkevicius
P. Miškinis "Some Aspects of Sound Propagation in Porous Medium", Solid State Phenomena, Vol. 113, pp. 526-530, 2006