Abstract
The paper presents the short survey both of theoretical and experimental results as well as some approaches to the creation of unsteady multi-phase mathematical models and to the working out of the experimental methods of the simulation of the eruption processes based on the method of hydrodynamic pulse shock tubes. hydrodynamic shock tube The fullsystem of the equations for the study of the initial stage of explosive eruption as well as the results of numerical studies on the magma state dynamics taking into account the gravity, diffusive processes and dynamically changing viscosity will be considered. The experimental simulation of magma fragmentation carried out within the framework of shock tube methods has shown, that the magma fragmentation can be happened also in a result of flow stratification: the flow division into the system of the vertical jets of the spatial form which then are disintegrated on separate fragments.
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