Results 51 to 60 of about 21,022,616 (100)

A 3D lattice Boltzmann – phase-field model of three-phase contact line dynamics on curved boundaries

open access: yesApplied and Computational Mechanics
In this paper, we present a three-dimensional multiphase fluid lattice Boltzmann model based on the phase-field theory. The conservative Allen-Cahn equation was used to describe the interface dynamics between two different fluids.
Benioug M.
doaj   +1 more source

A hysteresis approach to phase-field models

open access: yes, 2000
Phase-field systems as mathematical models to forecast the evolution of processes involving phase transitions have drawn a considerable interest in recent years.
P. Krejčı́   +3 more
core   +1 more source

A Flux-Corrected Phase-Field Method for Surface Diffusion

open access: yes, 2017
Phase-field methods with a degenerate mobility have been widely used to simulate surface diffusion motion. However, apart from the motion induced by surface diffusion, adverse effects such as shrinkage, coarsening and false merging have been observed in ...
Wenjing Ye   +3 more
core   +1 more source

Sliding-Surface Analysis of Saturated Soil Slopes Under Variable Confining Pressure Using a Phase-Field Method

open access: yesApplied Sciences
Seismic loading may increase confining pressure, which can degrade the soil shear modulus, alter the stress-field distribution within slopes, and thereby affect slope stability.
Hong-Yu Wu   +3 more
doaj   +1 more source

The Phase-Field Method in Optimal Design

open access: yes, 2006
We describe the phase-field method, a new approach to optimal design originally introduced in Bourdin and Chambolle (2000, 2003). It is based on the penalization of the variation of the properties of the designs, and its variational approximation (in the
Bourdin, Blaise   +3 more
core   +1 more source

The phase field method—From fundamentals to practical applications in crystal growth

open access: yes, 2023
International audienceIn this paper, the phase-field method is described and used to model ice crystal growth that is studied in Chemical Engineering in the freezing or freeze-drying process.
Cogné, Claudia   +7 more
core   +1 more source

Weak solutions to a multi-phase field system of parabolic equations related to alloy solidification [PDF]

open access: yes, 2007
Existence of weak solutions to a phase field model for solidification of alloys is studied. The model consists of balance equations for the energy and the concentrations of the alloy components which are coupled to a system of Allen-Cahn equations ...
Stinner, Björn
core   +1 more source

Constraints and penalties for phase-field flows in \(\mathbb{R}^2\) and \(\mathbb{R}^N\)

open access: yes, 2019
We present two gradient flow evolutions, both obtained with alternate schemes for separately-quadratic phase-field energies. The first, in the plane strain setting, features a monotonicity constraint (in time) and a multi-step scheme, for better ...
Negri, Matteo
core   +1 more source

Phase-field modeling for axonal extension of nerve cells

open access: yesMechanical Engineering Journal, 2015
In this study, we applied a modified Kobayashi-Warren-Carter (KWC) phase-field model to the neurite growth process. To confirm the applicability of this model, we observed axonal extension of PC-12D cells cultured with nerve growth factor (NGF). Based on
Tomohiro TAKAKI   +3 more
doaj   +1 more source

Study of imbibition in various geometries using phase field method [PDF]

open access: yes, 2019
Phase field method has been widely utilized to study multiphase flow problems, but has seldom been applied to the study of imbibition. Previous methods used to simulate imbibition, such as moving mesh method, need to specify capillary pressure as a ...
Luo, Youming   +6 more
core   +1 more source

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