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Evolution of waves in a porous medium when passing the boundary between bubbly and "pure" liquids saturating the porous medium
Gimaltdinov I.K.
1, Khusainov I. G.1,2
1Ufa State Petroleum Technological University, Ufa, Russia
2Sterlitamak branch of the Ufa University of Science and Technology, Sterlitamak, Russia
2Sterlitamak branch of the Ufa University of Science and Technology, Sterlitamak, Russia
Email: iljas_g@mail.ru
The reflection and transmission of acoustic waves in a porous medium across the boundary between bubbly and "clean" liquids was studied. Dispersion relations for the reflection and transmission coefficients were obtained, accounting for the initiation of secondary ("fast" and "slow" waves). The dynamics of finite-duration pulses was studied using the fast Fourier transform method. Keywords: porous medium, bubbly liquid, harmonic waves, reflection and transmission, pressure pulse, Fourier transform.. Keywords: porous medium, bubbly liquid, wave.
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