Abstract
The features of the propagation of rarefaction waves in a cylindrical cavity in a porous medium with a layer containing gas hydrate are investigated. On the basis of the Lax-Wendroff method, a method of numerical solution of the two-dimensional problem of propagation of perturbations in a cylindrical cavity and its surrounding porous medium is developed. On the basis of the obtained calculation data, the reflection and transmission coefficients of the signal at the boundaries of the hydrate-containing layer along the cavity are determined. The influence of the characteristics of the initial signal and hydrate-containing layer on the propagation of rarefaction perturbations along the cavity is analyzed. The results of the numerical study are in a good agreement with the previous results of solving this problem obtained in a linear approximation.
Published Version
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