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Gradient subgrid-scale model for relativistic MHD large-eddy simulations
(American Physical Society, 2020-03-15)
Magnetohydrodynamics (MHD) turbulence is likely to play an important role in several astrophysical scenarios, where the magnetic Reynolds is very large. Numerically, these cases can be studied efficiently by means of ...
Low contrast buried waveguides index profile reconstruction method considering the evanescent field
(IOP Publishing, 2015-08)
In this work we present a new approach related to the profile reconstruction of graded-index waveguides, based on the inversion of the Helmholtz equation for transversal electric propagation modes from measuring the near ...
Weakly bound states in heterogeneous waveguides
(Springer, 2016-07)
We study the spectrum of the Helmholtz equation in a two-dimensional infinite waveguide, containing a weak heterogeneity localized at an internal point, and obeying Dirichletboundary conditions at its border. We use the ...
Spectral algorithms for multiple scale localized eigenfunctions in infinitely long, slightly bent quantum waveguides
(Elsevier Science, 2018-03)
A “bent waveguide” in the sense used here is a small perturbation of a two-dimensional rectangular strip which is infinitely long in the down-channel direction and has a finite, constant width in the cross-channel coordinate. ...
Adsorption thermodynamics of two-domain antifreeze proteins: Theory and Monte Carlo simulations
(Royal Society of Chemistry, 2016-08)
In this paper we develop the statistical thermodynamics of two-domain antifreeze proteins adsorbed on ice. We use a coarse-grained model and a lattice network in order to represent the protein and ice, respectively. The ...
Turbulent magnetic-field amplification in the first 10 milliseconds after a binary neutron star merger: Comparing high-resolution and large-eddy simulations
(American Physical Society, 2020-11)
The detection of binary neutron star mergers represents one of the most important and complex astrophysical discoveries of the recent years. One of the unclear aspects of the problem is the turbulent magnetic field ...
Chaos in wavy-stratified fluid-fluid flow
(American Institute of Physics, 2019-03)
We perform a nonlinear analysis of a fluid-fluid wavy-stratified flow using a simplified two-fluid model (TFM), i.e., the fixed-flux model (FFM), which is an adaptation of the shallow water theory for the two-layer problem. ...
Fréedericksz transition on a phenomenological model for a nematic inhomogeneous superfluid in presence of an electric field
(Elsevier Science, 2020-12)
In this article we derive a Ginzburg–Landau energy functional for a nematic inhomogeneous superfluid in presence of an electric field. The molecules occupy an infinite cylinder Ω with cross section D. We suppose vacuum in ...
Adsorption of three-domain antifreeze proteins on ice: A study using LGMMAS theory and Monte Carlo simulations
(Royal Society of Chemistry, 2017-11)
In the present work, the adsorption of three-domain antifreeze proteins on ice is studied by combining a statistical thermodynamics based theory and Monte Carlo simulations. The three-domain protein is modeled by a trimer, ...
Integral Modelling of Propagation of Incident Waves in a Laterally Varying Medium : an Exploration in the Frequency DomainModelado integral de propagación de ondas incidentes en medios con gradientes laterales : una exploración en el dominio de la frecuencia
(ECOPETROL - Instituto Colombiano del PetróleoGrupo de Física y Astrofísica Computacional (FACOM)Bucaramanga, Colombia, 2022)