Results 1 to 10 of about 5,260,932 (132)

A Soluble Phase Field Model [PDF]

Physical 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, A.J. Bray, Andrea Crisanti, D.B. Abraham, Giulia Iori, H. Müller-Krumbahaar, H.E. Stanley, J. Weeks, J.B. Collins, J.D. Gunton, J.S. Langer, J.W. Cahn, M. Conti, O. Penrose, P. Hohenberg, P. Keblinski, R. Glauber, R. Kupferman, S. Ciuchi, S.L. Wang, T.H. Berlin, U. Marini Bettolo Marconi, U. Marini Bettolo Marconi, U. Marini Bettolo Marconi, Umberto Marini Bettolo Marconi, W.L. Mullins   +25 more
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Sharp Phase Field Method [PDF]

Physical 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, Le Bouar, Yann, Dabas, Benoît, Appolaire, Benoît, Yamada, Yasunori, Mohri, Tetsuo   +5 more
openaire   +4 more sources

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

SSRN 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．, Prita Pant, M.P. Gururajan   +2 more
openaire   +2 more sources

Particles, phases, fields [PDF]

Banach Center Publications, 1996
The physical properties of particles and phasesare considered in connection with their description by means of the deformation of space-time. The analogy between particle trajectories and phase boundaries is discussed. The geometry and its curvature is related to the Clifford algebraic structure whose construction in terms of the theory of deformation ...
J. Rutkowski, I. Zasada, A. Urbaniak-Kucharczyk, L. Wojtczak   +3 more
openaire   +1 more source

Phase-field-crystal models for condensed matter dynamics on atomic length and diffusive time scales: an overview [PDF]

, 2012
Here, we review the basic concepts and applications of the phase-field-crystal (PFC) method, which is one of the latest simulation methodologies in materials science for problems, where atomic- and microscales are tightly coupled. The PFC method operates
Artemev A., Brazowskii S. A., Choudhary M. A., Cross M. C., de Gennes P. G., Dholakia K., Dhont J. K.G., Doi M., Emmerich H., Emmerich H., Evans R., Freund L. B., Frey E., Gray C. G., Groot S. R.d., Gunton J. D., Gyula I. Tóth, György Tegze, Hansen J. P., Hartmut Löwen, Heike Emmerich, Kalikmanov V. I., Kelton K. F., László Gránásy, Pilipenko D., Pismen L. M., Raphael Wittkowski, Reichl L. E., Risken H., Shimoji M., Tegze G., Thomas Gruhn   +31 more
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Scalar field phase dynamics in preheating [PDF]

, 2007
We study the model of a massive inflaton field $\phi$ coupled to another scalar filed $\chi$ with interaction term $g^2\phi^2\chi^2$ for the first stage of preheating.
Charters, T., Mimoso, J. P., Nunes, A.
core   +2 more sources

Phase field modelling of surfactants in multi-phase flow [PDF]

, 2018
A diffuse interface model for surfactants in multi-phase flow with three or more fluids is derived. A system of Cahn-Hilliard equations is coupled with a Navier-Stokes system and an advection-diffusion equation for the surfactant ensuring thermodynamic ...
Dunbar, Oliver R. A., Lam, Kei Fong, Stinner, Bjorn   +2 more
core   +3 more sources

Phase field analysis of eutectic breakdown. [PDF]

, 2006
In this paper an isotropic multi-phase-field model is extended to include the effects of anisotropy and the spontaneous nucleation of an absent phase. This model is derived and compared against a published single phase model.
A. Wheeler, A.M. Mullis, B. Nestler, B. Nestler, B. Nestler, B. Wei, I. Steinbach, J. Tiaden, J. Warren, J.R. Green, K. Jackson, P.K. Jimack, R. Braun, R. Goetzinger, Y. Kim   +14 more
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Field-control, phase-transitions, and life's emergence [PDF]

, 2012
Instances of critical-like characteristics in living systems at each organizational level as well as the spontaneous emergence of computation (Langton), indicate the relevance of self-organized criticality (SOC).
Mitra, A. N., Mitra-Delmotte, Gargi
core   +3 more sources

Field theory of absorbing phase transitions with a non-diffusive conserved field [PDF]

, 2000
We investigate the critical behavior of a reaction-diffusion system exhibiting a continuous absorbing-state phase transition. The reaction-diffusion system strictly conserves the total density of particles, represented as a non-diffusive conserved field,
A. Chessa, A. Vespignani, Alessandro Vespignani, B. P. Lee, C. Tebaldi, D. Dhar, E. Milshtein, E. V. Albano, F. van Wijland, H. J. Jensen, H. K. Janssen, H. K. Janssen, I. Jensen, I. Jensen, J. F. F. Mendes, J. L. Cardy, J. L. Cardy, J. Marro, K. Nakanishi, L. Peliti, M. De Menech, M. Doi, M. Paczuski, M. Paczuski, M. Rossi, P. Bak, P. Grassberger, P. Grassberger, R. Dickman, R. Kree, Romualdo Pastor-Satorras, S. Lübeck, S. S. Manna   +32 more
core   +3 more sources