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A Soluble Phase Field Model [PDF]

open access: yesPhysical Review E, 1997
The kinetics of an initially undercooled solid-liquid melt is studied by means of a generalized Phase Field model, which describes the dynamics of an ordering non-conserved field phi (e.g.
A. Coniglio   +25 more
core   +8 more sources

Phase-field Crystals with Elastic Interactions [PDF]

open access: yesPhysical Review Letters, 2006
We report on a novel extension of the recent phase-field crystal (PFC) method introduced in [Elder et al., Phys. Rev. Lett., Vol. 88, 245701:1-4 (2002)], which incorporates elastic interactions as well as crystal plasticity and diffusive dynamics. In our
Mikko Haataja   +3 more
core   +3 more sources

Numerical Approximations of Diblock Copolymer Model Using a Modified Leapfrog Time-Marching Scheme

open access: yesComputation, 2023
An efficient modified leapfrog time-marching scheme for the diblock copolymer model is investigated in this paper. The proposed scheme offers three main advantages.
Lizhen Chen   +3 more
doaj   +1 more source

Lattice Boltzmann Solver for Multiphase Flows: Application to High Weber and Reynolds Numbers

open access: yesEntropy, 2021
The lattice Boltzmann method, now widely used for a variety of applications, has also been extended to model multiphase flows through different formulations. While already applied to many different configurations in low Weber and Reynolds number regimes,
Seyed Ali Hosseini   +2 more
doaj   +1 more source

Dislocation Assisted Phase Separation: A Phase Field Study [PDF]

open access: yesSSRN Electronic Journal, 2021
Defects play a key role in deciding the mechanisms and kinetics of phase transformations. In this paper, we show how dislocations influence phase separation in alloys with miscibility gap. Specifically, depending on the ratio of pipe mobility to bulk mobility, it is seen that even in a system with nominal compositions outside the spinodal limit ...
Arjun Varma R.   +2 more
openaire   +2 more sources

Isogeometric Analysis-Based Solidification Simulation and an Improved Way to Apply Supercooling on Droplet Boundary

open access: yesMetals, 2022
The classic finite difference method (FDM) has been successfully adopted in the simulation of dendritic solidification, which is based on phase-field theory. Nevertheless, special strategies of boundary integral and projection are required for applying a
Jiangping Xu   +5 more
doaj   +1 more source

Sharp Phase Field Method [PDF]

open access: yesPhysical Review Letters, 2018
Phase field modelling offers an extremely general framework to predict microstructural evolutions in complex systems. However, its computational implementation requires a discretisation scheme with a grid spacing small enough to preserve the continuous character of the theory. We present here a new formulation, which is intrinsically discrete, in which
Finel, Alphonse   +5 more
openaire   +4 more sources

Numerical Study on Dynamics of Blood Cell Migration and Deformation in Atherosclerotic Vessels

open access: yesMathematics, 2022
A phase field model is used to study the effect of atherosclerotic plaque on hemodynamics. The migration of cells in blood flows is described by a set of multiple phase field equations, which incorporate elastic energies and the interacting effects of ...
Yihao Wu   +3 more
doaj   +1 more source

Corners in phase-field theory [PDF]

open access: yesPhysical Review E, 2021
Phase-field models for strongly anisotropic surface energy need to be regularized to remove the ill posedness of the dynamic equations. Regularization introduces a new length scale, the corner size, also called the bending length. For large corner size, with respect to interface thickness, the phase-field method is known to converge asymptotically ...
openaire   +3 more sources

Path-dependent Vortex Switching in Ferroelectric Nanoplate Junctions Toward a Memory Device Concept

open access: yesFrontiers in Physics, 2022
Ferroelectric vortex has attracted much attention as a promising candidate for memories with high density and high stability. It is a crucial problem to precisely manipulate the vortex chirality in order to utilize it to store information.
Weiming Xiong   +6 more
doaj   +1 more source

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