Three-Dimensional Numerical Modeling of Lava Dynamics Using the Smoothed Particle Hydrodynamics Method

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Three-Dimensional Numerical Modeling of Lava Dynamics Using the Smoothed Particle Hydrodynamics Method. / Starodubtsev, I. S.; Starodubtseva, Y. V.; Tsepelev, I. A. et al.
In: Journal of Volcanology and Seismology, Vol. 17, No. 3, 01.06.2023, p. 175-186.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{91c55bcacfd348caa027bbfb985e0ec7,

title = "Three-Dimensional Numerical Modeling of Lava Dynamics Using the Smoothed Particle Hydrodynamics Method",

abstract = "Lava domes and lava flows are major manifestations of effusive volcanic eruptions. Less viscous lava tends to flow long distances depending on the volcanic slope topography, the eruption rate, and the viscosity of the erupted magma. When magma is highly viscous, its eruption to the surface leads to the formation of lava domes and their growth. The meshless smoothed particle hydrodynamics (SPH) method is used in this paper to simulate lava dynamics. We describe the SPH method and present a numerical algorithm to compute lava dynamics models. The numerical method is verified by solving a model of cylindrical dam-break fluid flow, and the modelled results are compared to the analytical solution of the axisymmetric thin-layer viscous current problem. The SPH method is applied to study three models of lava advancement along the volcanic slope, when the lava viscosity is constant, depends on time and on the volume fraction of crystals in the lava. Simulation results show characteristic features of lava flows, such as lava channel and tube formation, and lava domes, such as the formation of a highly viscous carapace versus a less viscous dome core. Finally, the simulation results and their dependence on a particle size in the SPH method are discussed.",

author = "Starodubtsev, {I. S.} and Starodubtseva, {Y. V.} and Tsepelev, {I. A.} and Ismail-Zadeh, {A. T.}",

note = "The work was supported by the Russian Foundation for Basic Research (RFBR grant 20-51-12002) and the German Science Foundation (DFG grant IZ203/14-1).",

year = "2023",

month = jun,

day = "1",

doi = "10.1134/S0742046323700185",

language = "English",

volume = "17",

pages = "175--186",

journal = "Journal of Volcanology and Seismology",

issn = "0742-0463",

publisher = "Pleiades Publishing",

number = "3",

}

RIS

TY - JOUR

T1 - Three-Dimensional Numerical Modeling of Lava Dynamics Using the Smoothed Particle Hydrodynamics Method

AU - Starodubtsev, I. S.

AU - Starodubtseva, Y. V.

AU - Tsepelev, I. A.

AU - Ismail-Zadeh, A. T.

N1 - The work was supported by the Russian Foundation for Basic Research (RFBR grant 20-51-12002) and the German Science Foundation (DFG grant IZ203/14-1).

PY - 2023/6/1

Y1 - 2023/6/1

N2 - Lava domes and lava flows are major manifestations of effusive volcanic eruptions. Less viscous lava tends to flow long distances depending on the volcanic slope topography, the eruption rate, and the viscosity of the erupted magma. When magma is highly viscous, its eruption to the surface leads to the formation of lava domes and their growth. The meshless smoothed particle hydrodynamics (SPH) method is used in this paper to simulate lava dynamics. We describe the SPH method and present a numerical algorithm to compute lava dynamics models. The numerical method is verified by solving a model of cylindrical dam-break fluid flow, and the modelled results are compared to the analytical solution of the axisymmetric thin-layer viscous current problem. The SPH method is applied to study three models of lava advancement along the volcanic slope, when the lava viscosity is constant, depends on time and on the volume fraction of crystals in the lava. Simulation results show characteristic features of lava flows, such as lava channel and tube formation, and lava domes, such as the formation of a highly viscous carapace versus a less viscous dome core. Finally, the simulation results and their dependence on a particle size in the SPH method are discussed.

AB - Lava domes and lava flows are major manifestations of effusive volcanic eruptions. Less viscous lava tends to flow long distances depending on the volcanic slope topography, the eruption rate, and the viscosity of the erupted magma. When magma is highly viscous, its eruption to the surface leads to the formation of lava domes and their growth. The meshless smoothed particle hydrodynamics (SPH) method is used in this paper to simulate lava dynamics. We describe the SPH method and present a numerical algorithm to compute lava dynamics models. The numerical method is verified by solving a model of cylindrical dam-break fluid flow, and the modelled results are compared to the analytical solution of the axisymmetric thin-layer viscous current problem. The SPH method is applied to study three models of lava advancement along the volcanic slope, when the lava viscosity is constant, depends on time and on the volume fraction of crystals in the lava. Simulation results show characteristic features of lava flows, such as lava channel and tube formation, and lava domes, such as the formation of a highly viscous carapace versus a less viscous dome core. Finally, the simulation results and their dependence on a particle size in the SPH method are discussed.

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U2 - 10.1134/S0742046323700185

DO - 10.1134/S0742046323700185

M3 - Article

VL - 17

SP - 175

EP - 186

JO - Journal of Volcanology and Seismology

JF - Journal of Volcanology and Seismology

SN - 0742-0463

IS - 3

ER -

ID: 41539557