Journal
GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS
Volume 102, Issue 4, Pages 373-380Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/03091920801956957
Keywords
logarithmic Schrodinger equation; two-phase fluid; soliton; eruption
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It is shown that the hydrodynamic form of nonlinear logarithmic Schrodinger equation (NLSE), in 3 + 1 dimensions, describes a solitonic flow of an isothermal, inviscid, compressible, capillary (Korteweg) fluid. This formulation corresponds to the so-called diffuse interface models used in hydrodynamics for two-phase fluids. The negative thermodynamic pressure furnished by the model indicates a possible application of the model to the description of a gas-saturated magma melt, rising in a volcanic conduit, in presence of cavitation processes.
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