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One-dimensional model of interacting-step fluctuations on vicinal surfaces:Analytical formulas and kinetic Monte Carlo simulations
One-dimensional model interacting-step fluctuations vicinal surfaces Analytical formulas kinetic Monte Carlo simulations
2015/10/16
We study analytically and numerically a one-dimensional model of interacting line defects steps fluctuating on a vicinal crystal. Our goal is to formulate and validate analytical techniques for appr...
Feature-scale Simulations of Particulate Slurry Flows in Chemical Mechanical Polishing by Smoothed Particle Hydrodynamics
Chemical mechanical polishing smoothed particle hydrodynamics particulate flow rough pad wafer defects abrasive concentration
2014/10/10
In this paper, the mechanisms of material removal in chemical mechanical polishing (CMP) processes are investigated in detail by the smoothed particle hydrodynamics (SPH) method. The feature-scale beh...
On Simulations from the Two-Parameter Poisson-Dirichlet Process and the Normalized Inverse-Gaussian Process
Dirichlet process Nonparametric Bayesian inference Normalized inverse-Gaussian process Simulation Stable law process Stick-breaking representation Two-parameter Poisson-Dirichlet process.
2012/11/23
In this paper, we develop simple, yet efficient, procedures for sampling approximations of the two-Parameter Poisson-Dirichlet Process and the normalized inverse-Gaussian process. We compare the effic...
Kinematic dynamo simulations of von Kármán flows: application to the VKS experiment
von Kármán flows Kinematic dynamo simulations VKS experiment
2011/7/7
The VKS experiment has evidenced dynamo action in a highly turbulent liquid sodium von K\'arm\'an flow [R. Monchaux et al., Phys. Rev. Lett. {\bf 98}, 044502 (2007)]. However, the existence and the on...
Stable marriage problem under Monte Carlo simulations, influence of preferrence corelation on relaxation time
Stable marriage problem Monte Carlo simulations influence of preferrence corelation relaxation time
2011/7/5
In this paper we consider stable marriage problem under the Monte Carlo
simulations. We investigate how correlation in lists of preferrences can affect
simulation results such as: relaxation time, t...
Glow discharge in low pressure plasma PVD: mathematical model and numerical simulations
Glow discharge low pressure plasma PVD mathematical model numerical simulations
2011/3/2
In this paper we analyze the problem of glow discharge in low pressure plasma in industrial plant, for chambers of different shapes and various working parameters, like pressure and electric potential...
Outflow boundary conditions for 3D simulations of non-periodic blood flow and pressure fields in deformable arteries
blood flow computer modeling boundary conditions coupled multidomain method
2011/3/2
The simulation of blood flow and pressure in arteries requires outflow boundary conditions that incorporate models of downstream domains.
Towards Quantitative Simulations of High Power Proton Cyclotrons
Quantitative Simulations High Power Proton Cyclotrons
2011/3/2
We describe a large scale simulation e ort using OPAL (Object Oriented Parallel Accelerator
Library), that leads to a better quantitative understanding of the existing PSI high power proton cyclotron...
Navier-Stokes characteristic boundary conditions for simulations of some typical flows
Navier-Stokes characteristic boundary conditions non-dissipative compact schemes
2010/9/21
The improved Navier-Stokes characteristic boundary conditions (NSCBC) method for direct numerical simulation of viscous flows, combining six order non-dissipative compact schemes with eight order filt...
Analytic solutions of parametric type and numerical simulations of a class of nonlinear ordinary differential equations
BVP analytic solutions of parametric type
2010/9/25
In this paper, the mathematical model that describes the radially symmetric deformation of a micro-void centered at a compressible hyperelastic sphere is formulated as a boundary value problem (BVP) o...
Test of some numerical limiters for the conservative PSM scheme for 4D Drift-Kinetic simulations
numerical simulation conservative scheme ITER plasma turbulence
2011/3/2
The purpose of this work is simulation of magnetised plasmas in the ITER project framework. In this context, Vlasov-Poisson like models are used to simulate core turbulence in the tokamak in a toroida...
On modelling transitional turbulent flows using under-resolved direct numerical simulations: The case of plane Couette flow
Pattern Formation and Solitons (nlin.PS) Fluid Dynamics (physics.flu-dyn)
2010/11/10
Direct numerical simulations have proven of inestimable help to our understanding of the transition to turbulence in wall-bounded flows. While the dynamics of the transition from laminar flow to turbu...
Fluid Simulations with Localized Boltzmann Upscaling by Direct Simulation Monte-Carlo
Localized Boltzmann Upscaling Simulation Monte-Carlo
2010/11/18
In the present work, we present a novel numerical algorithm to couple the Direct Simulation Monte Carlo method (DSMC) for the solution of the Boltzmann equation with a finite volume like method for t...
Tools of Toys? On Specific Challenges for Modeling and the Epistemology of Models and Computer Simulations in the Social Sciences
Epistemology Simulations Social Limitations Mathematical Methods
2011/9/6
Mathematical models are a well established tool in most natural sciences. Although models have been neglected by the philosophy of science for a long time, their epistemological status as a link betwe...
Asymptotic analysis, approximations and simulations of the compensation problem in hyperbolic systems
Hyperbolic systems remediability controllability
2010/9/13
This work concern an extension of the asymptotic compensation problem in hyperbolic systems. We introduce and characterize the notion of asymptotic remediability, which consists to compensate asymptot...