In this paper the possibility of the sound channel forming by the inhomogeneous distribution of strongly compressible inclusions – gas bubbles in homogeneous water-like media is investigated. The method of calculation of the acoustic field of intense wave beams near the axis of the sound channel is proposed. Field of the intense Gaussian beam is calculated for the case of the mismatch of its axis with the axis of the sound channel. The methods developed can be applied to calculate the intense fields in natural media, such as gas-saturated bottom sediments, and in the built media – metamaterials that let to control the transformation of space-time structure of the field.
47.55.dd Bubble dynamics
47.40.Nm Shock wave interactions and shock effects
43.30.+m Underwater sound
Department of Acoustics, Faculty of Physics, M.V.Lomonosov Moscow State University, Moscow 119991, Russia
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