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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2005, Volume 46, Issue 2, Pages 71–80
(Mi pmtf2246)
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This article is cited in 6 scientific papers (total in 6 papers)
Generation and evolution of cavitation in magma under dynamic unloading
M. N. Davydova, V. K. Kedrinskiia, A. A. Chernovb, K. Takayamac a Lavrent’ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk
b Kutateladze Institute of Thermophysics, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk
c Shock Wave Research Center, Sendai, Japan
Abstract:
The full system of equations for the problem of rarefaction-wave passage over the magma-melt column in the gravity field is derived with the use of the kinetic theory of phase transformations, and the problem is numerically solved. With allowance for diffusion zones and nucleation frequency as a function of supersaturation, the dependence of the number of cavitation nuclei formed in the course of phase transformations behind the rarefaction-wave front is found. The dynamics of the size distribution of cavitation bubbles along the magma-melt column (1 km) whose viscosity varies dynamically as a function of the concentration of dissolved water is studied.
Keywords:
explosive volcanic eruption, dynamic unloading, cavitation.
Received: 31.05.2004
Citation:
M. N. Davydov, V. K. Kedrinskii, A. A. Chernov, K. Takayama, “Generation and evolution of cavitation in magma under dynamic unloading”, Prikl. Mekh. Tekh. Fiz., 46:2 (2005), 71–80; J. Appl. Mech. Tech. Phys., 46:2 (2005), 208–215
Linking options:
https://www.mathnet.ru/eng/pmtf2246 https://www.mathnet.ru/eng/pmtf/v46/i2/p71
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