Results 1 to 10 of about 1,767 (156)

Convection, but How Fast Does Fluid Mix in Hydrothermal Systems?

open access: yesGeophysical Research Letters
The destabilizing thermal gradient across the Earth's lithosphere drives convection in superconfined hydrothermal environments at mid‐ocean ridges and geothermal reservoirs in the continental crust.
Hugo N Ulloa, Daisuke Noto
exaly   +3 more sources

Transport mechanisms of hydrothermal convection in faulted tight sandstones [PDF]

open access: yesSolid Earth, 2023
Motivated by the unknown reasons for a kilometre-scale high-temperature overprint of 270–300 ∘C in a reservoir outcrop analogue (Piesberg quarry, northwestern Germany), numerical simulations are conducted to identify the transport mechanisms of the fault-
G. Yan   +5 more
doaj   +5 more sources

Physical balances in subseafloor hydrothermal convection cells [PDF]

open access: yesJournal of Geophysical Research, 2004
We use a simplified model of convection in a porous medium to investigate the balances of mass and energy within a subseafloor hydrothermal convection cell. These balances control the steady state structure of the system and allow scalings for the height, permeability, and residence time of the “reaction zone” at the base of the cell to be calculated ...
Adam Schultz
exaly   +2 more sources

Evaporation of Nanofluid Sessile Droplets Under Marangoni and Buoyancy Effects: Internal Convection and Instability [PDF]

open access: yesNanomaterials
Previous research has studied the evolution of patterns during the evaporation of sessile droplets of pure liquid, although there is a lack of reports focusing on the transition of flow regimes and flow stability of nanofluids.
Yuequn Tao, Zhiqiang Zhu
doaj   +2 more sources

Internally Heated Porous Convection: An Idealized Model for Enceladus' Hydrothermal Activity [PDF]

open access: yesJournal of Geophysical Research E: Planets, 2020
AbstractRecent planetary data and geophysical modeling suggest that hydrothermal activity is ongoing under the ice crust of Enceladus, one of Saturn's moons. According to these models, hydrothermal flow in the porous, rocky core of the satellite is driven by tidal deformation that induces dissipation and volumetric internal heating.
Thomas Le Reun, Duncan R Hewitt
exaly   +4 more sources

Influence of External Magnetic Field on 3D Thermocapillary Convective Flow in Various Thin Annular Pools Filled with Silicon Melt [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Thermocapillary convection flows can have an impact on the homogeneity of floating zone semiconductor crystals. An external magnetic field can also help to reduce this non-homogeneity.
M. O. Azzoug   +2 more
doaj   +1 more source

Hydrothermal waves in Marangoni convection in a cylindrical container [PDF]

open access: yesPhysical Review E, 1993
The features of hydrothermal waves that appear when a liquid layer is laterally heated are presented. A bifurcation is observed from a steady regime to a regime of a basic flow with superimposed traveling waves. Measured characteristics of waves are shown and compared with some recent theoretical predictions.
, Ezersky   +4 more
openaire   +4 more sources

Spatiotemporal structure of hydrothermal waves in Marangoni convection [PDF]

open access: yesPhysical Review E, 1993
When a liquid layer is laterally heated, the basic flow loses stability in the form of hydrothermal waves. They can be visualized by means of the shadowgraph technique. The characteristics of these waves are studied by performing the Fourier transform on a spatiotemporal diagram.
, Ezersky   +3 more
openaire   +4 more sources

Effects of Deep Fluids on Middle Permian Dolomite of the Western Sichuan Basin

open access: yesFrontiers in Earth Science, 2022
Deep fluid activity is closely related to carbonate reservoir transformation as well as oil and gas accumulation. The large-scale deep fluid activity caused by Emeishan large igneous province (ELIP) brought a lot of deep material and energy to Sichuan ...
Huiwen Huang   +9 more
doaj   +1 more source

Particle entrainment and rotating convection in Enceladus’ ocean

open access: yesCommunications Earth & Environment, 2023
Observations from Cassini have identified nanometer-sized silica grains in Saturn’s E-ring although their origin is unclear. Tidal deformation within Enceladus’ silicate core has been predicted to generate hot hydrothermal fluids that rise from the core ...
Ashley M. Schoenfeld   +5 more
doaj   +1 more source

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