Results 21 to 30 of about 43,457 (303)

The degenerate and non-degenerate Stefan problem with inhomogeneous and anisotropic Gibbs--Thomson law [PDF]

open access: yes, 2010
The Stefan problem is coupled with a spatially inhomogeneous and anisotropic Gibbs-Thomson condition at the phase boundary. We show the long-time existence of weak solutions for the non-degenerate Stefan problem with a spatially inhomogeneous and ...
Kraus, Christiane, CHRISTIANE KRAUS
core   +1 more source

On the solution of the steady‐state diffusion problem for ferromagnetic particles in a magnetic fluid

open access: yesMathematical Modelling and Analysis, 2008
A mathematical model for the diffusion process of ferromagnetic particles in a magnetic fluid is described. The unique solvability of the steady‐state particle concentration problem is investigated and an analytical expression for its solution is found ...
Viktor Polevikov, Lutz Tobiska
doaj   +1 more source

Solution of the Moisture Phase Transition Problem in the Insulation and Soils near Pipelines

open access: yesMATEC Web of Conferences, 2016
The analysis of various approaches to the heat conductivity modeling in soils with phase transition based on Stefan problem is provided. Herein the analytical solution for Stefan problem is received only for special cases.The approximate methods of ...
Aksenov Boris, Kryaknina Svetlana
doaj   +1 more source

A Stefan Problem for a Protocell Model [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 1999
The following Stefan problem for a spherical protocell model is considered: \[ \begin{cases}\sigma_{rr}+ {2\over r}\sigma_r =\sigma \chi_ ...
Friedman, Avner, Hu, Bei
openaire   +2 more sources

Scaling theory for two-dimensional single domain growth driven by attachment of diffusing adsorbates

open access: yesNew Journal of Physics, 2019
Epitaxial growth methods are a key technology used in producing large-area thin films on substrates but as a result of various factors controlling growth processes the rational optimization of growth conditions is rather difficult.
Kazuhiko Seki
doaj   +1 more source

Existence of weak solutions for the Stefan problem with anisotropic Gibbs-Thomson law [PDF]

open access: yes, 2011
The Stefan problem with Gibbs-Thomson law describes solidification phenomena for pure substances. In applications the surface energy is anisotropic leading to an anisotropic Gibbs-Thomson law. We show the existence of weak solutions to the Stefan problem
Garcke, Harald, Schaubeck, Stefan
core   +1 more source

Predictive Registry Optimization of Molecular Adsorbates on Solid Surfaces

open access: yesAngewandte Chemie, EarlyView.
Local C–H “spikes” from a π‐conjugated backbone lock into graphene “pockets”. A geometric registry score turns images obtained by scanning tunneling microscopy at the solid/liquid interface into atomic‐scale adsorption models, enabling assignment of surface atropisomers in large π‐conjugated molecules.
David A. Hofmeister   +7 more
wiley   +2 more sources

Propagation of minimality in the supercooled Stefan problem

open access: yes, 2022
Supercooled Stefan problems describe the evolution of the boundary between the solid and liquid phases of a substance, where the liquid is assumed to be cooled below its freezing point.
Sara Svaluto-Ferro   +5 more
core  

Riccati Feedback Stabilization of the Stefan Problem [PDF]

open access: yes, 2023
The modeling, simulation, control, and stabilization of phase change problems is an active area of research. One of the most commonly used models for this phenomenon is the Stefan problem.
Baran, B., Baran, Björn
core   +1 more source

Development of a phase change model for volume-of-fluid method in OpenFOAM [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2016
In this present study, volume of fluid method in OpenFOAM open source CFD package will be extended to consider phase change phenomena with modified model due to condensation and boiling processes.
Mohammad Bahreini   +2 more
doaj   +1 more source

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