Πλοήγηση ανά Θέμα "Physics, Mathematical"
Αποτελέσματα 21-34 από 34
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Noise perturbation of the thermostat in constant temperature molecular dynamics simulations
(2004)In this work we study the effects of noise applied on the thermostat in the case of the constant temperature molecular dynamics simulations. We consider the cases of additive and or multiplicative noise. We then examine ... -
Non-overlapping Generation Species: Complex Prey-Predator Interactions
(2015)In this paper we study a prey-predator dynamical system suitable for species having no overlap between successive generations. Assuming that population evolves in discrete-time steps we investigate the prey refuge effect ... -
Nonlinear time series analysis and clustering for jet axis identification in vertical turbulent heated jets
(2014)In the present work we approach the hydrodynamic problem of discriminating the state of the turbulent fluid region as a function of the distance from the axis of a turbulent jet axis. More specifically, we analyzed temperature ... -
Numerical integration of fluid dynamics problems by discrete dynamical systems
(2000)A discrete time algorithm for the numerical solution of the Navier-Stokes equations, namely the set of nonlinear partial differential equations (PDEs) characterizing the how of viscous and compressible fluids is presented. ... -
On perturbations of the Mandelbrot map
(2000)In this work, we propose new applications of analytic and non-analytic perturbations of the Mandelbrot map as expressed in a two-parameter deformation family of it. The influence of alternative applications of noise for ... -
On probabilistic Mandelbrot maps
(2009)In this work, we propose a definition for a probabilistic Mandelbrot map in order to extend and support the study initiated by Argyris et al. [Argyris J, Andreadis I, Karakasidis Th. On perturbations of the Mandelbrot map. ... -
On the Julia set of the perturbed Mandelbrot map
(2000)In this work, we present numerical results which support the smooth decomposition method of the generalized Julia set by Peintge et al., in the case of other perturbations of the Mandelbrot map studied in our previous work ... -
On the Julia sets of a noise-perturbed Mandelbrot map
(2002)In the present work we present numerical results which support further a 2 " -type bifurcation scenario for the interior of the Fatou sets, as suggested by the smooth decomposition method introduced by Peinke, Parisi, ... -
Pi 4U: A high performance computing framework for Bayesian uncertainty quantification of complex models
(2015)We present Pi 4U,(1) an extensible framework, for non-intrusive Bayesian Uncertainty Quantification and Propagation (UQ+P) of complex and computationally demanding physical models, that can exploit massively parallel ... -
Predicting the Knudsen paradox in long capillaries by decomposing the flow into ballistic and collision parts
(2015)The well-known Knudsen paradox observed in pressure driven rarefied gas flows through long capillaries is quantitatively explored by decomposing the particle distribution function into its ballistic and collision parts. ... -
System dynamics revealed by recurrence quantification analysis: Application to molecular dynamics simulations
(2007)The present work examines the applicability and efficacy of recurrence plots and recurrence quantification analysis in interpreting statistical-mechanics-based simulations of classical fluids and solids. We analyze temperature ... -
Variance-reduced DSMC for binary gas flows as defined by the McCormack kinetic model
(2012)A variance-reduced direct simulation Monte Carlo method is presented for binary gas flows as defined by the McCormack kinetic model. Two types of flow configuration, namely pressure driven flow between two parallel plates ... -
Vibrational properties of a Sigma 5(310) 001 NiO grain boundary as a function of temperature: A molecular dynamics simulation
(2002)In this communication we present results concerning the study of the vibrational properties of a Sigma5(310)[001] NiO grain boundary by molecular dynamics simulations. The phonon density of states of the cation and anion ...