On A Problem Of Propagation Of Shock Waves Generated By Explosive Volcanic Eruptions
- Moscow State University, Physical Faculty, Department of Acoustics, Moscow (Russian Federation)
- Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow (Russian Federation)
Interdisciplinary study of flows of matter and energy in geospheres has become one of the most significant advances in Earth sciences. It is carried out by means of direct quantitative estimations based on detailed analysis of geological and geophysical observations and experimental data. The actual contribution is the interdisciplinary study of nonlinear acoustics and physical volcanology dedicated to shock wave propagation in a viscous and inhomogeneous medium. The equations governing evolution of shock waves with an arbitrary initial profile and an arbitrary cross-section of a beam are obtained. For the case of low viscous medium, the asymptotic solution meant to calculate a profile of a shock wave in an arbitrary point has been derived. The analytical solution of the problem on propagation of shock pulses from atmosphere into a two-phase fluid-saturated geophysical medium is analysed. Quantitative estimations were carried out with respect to experimental results obtained in the course of real explosive volcanic eruptions.
- OSTI ID:
- 21148820
- Journal Information:
- AIP Conference Proceedings, Vol. 1022, Issue 1; Conference: ISNA 18: 18. international symposium on nonlinear acoustics, Stockholm (Sweden), 7-10 Jul 2008; Other Information: DOI: 10.1063/1.2956241; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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