نتایج جستجو برای: hydrodynamic simulation

تعداد نتایج: 579330  

2002
YIMING LI CHUAN-SHENG WANG

In this paper, we generalize our proposed earlier computing method [10-11] to solve hydrodynamic semiconductor device equations. For submicron MOSFET devices, we simulate their temperature distribution by solving carrier energy balance equation with adaptive computational technique. This robust method based on: (1) the finite volume (FV) discertization scheme; (2) the monotone iterative (MI) al...

1999
Joseph W. Jerome Chi-Wang Shu

Moment models of carrier transport, derived from the Boltzmann equation, have made possible the simulation of certain key effects through such realistic global assumptions as energy dependent mobility functions. Some of these effects are not discerned via classical drift-diffusion models, which are primarily local in nature. In this paper, analysis and simulation of a recently developed energy ...

2012
Buntara Sthenly Gan

A simple and easy algorithm is presented for a fast calculation of kernel functions which required in fluid simulations using the Smoothed Particle Hydrodynamic (SPH) method. Present proposed algorithm improves the Linked-list algorithm and adopts the Pair-Wise Interaction technique, which are widely used for evaluating kernel functions in fluid simulations using the SPH method. The algorithm i...

ژورنال: مواد پرانرژی 2013

Abstract A two-dimensional numerical simulation is performed in the present work to study the structure of a detonation wave in high activation energy mixtures, which are characterized by their turbulent reaction zone structure and unreacted pockets. The process of transverse wave and triple point collision with the channel walls, formation and consumption mechanism of unburnt gas pockets is e...

Mazaheri, Said, Mirkhalili, Seyed Hamzeh,

Because of environmental sensitivity of the Caspian Sea, any subsea oil spills and blowouts can inflict destructive impacts on marine environment and cause catastrophic damage in the area. Employing mathematical simulation is one of the easiest and most effective prediction tools for understanding the oil spill behavior under various environmental forces. In this regard, Mike3D simulation packa...

Journal: :CoRR 2010
Bijia Pang Ue-li Pen Michael Perrone

We present magneto-hydrodynamic simulation results for heterogeneous systems. Heterogeneous architectures combine high floating point performance many-core units hosted in conventional server nodes. Examples include Graphics Processing Units (GPU’s) and Cell. They have potentially large gains in performance, at modest power and monetary cost. We implemented a magneto-hydrodynamic (MHD) simulati...

2008
JOSÉ A. CARRILLO THORSTEN PÖSCHEL CLARA SALUEÑA

A numerical hydrodynamic model of a vibrated granular bed in 2D is elaborated based on a highly accurate Shock Capturing scheme applied to the compressible Navier-Stokes equations for granular flow. The hydrodynamic simulation of granular flows is numerically difficult, particularly in systems where dilute and dense regions occur at the same time and interact with each other. As an example of s...

2009
E. Wes Bethel Oliver Rübel Prabhat Kesheng Wu Gunther H. Weber Valerio Pascucci Ajith Mascarenhas Sean Ahern Dave Pugmire

While the primary product of scientific visualization is images and movies, its primary objective is really scientific insight. Too often, the focus of visualization research is on the product, not the mission. This paper presents two case studies, both that appear in previous publications, that focus on using visualization technology to produce insight. The first applies “Query-Driven Visualiz...

Journal: :Ukrainian biochemical journal 2016
Yu V Danylovych A Y Chunikhin G V Danylovych O V Kolomiets

Using photon correlation spectroscopy, which allows investigating changes in the hydrodynamic dia­meter of the particles in suspension, it was shown that ultrahigh concentrations of Ca2+ (over 10 mM) induce swelling of isolated mitochondria. An increase in hydrodynamic diameter was caused by an increase of non-specific mitochondrial membrane permeability to Ca ions, matrix Ca2+ overload, activa...

Journal: :Faraday discussions 2010
Adam Wysocki C Patrick Royall Roland G Winkler Gerhard Gompper Hajime Tanaka Alfons van Blaaderen Hartmut Löwen

The sedimentation of an initially inhomogeneous distribution of hard-sphere colloids confined in a slit is simulated using the multi-particle collision dynamics scheme which takes into account hydrodynamic interactions mediated by the solvent. This system is an example for soft matter driven out of equilibrium where various length and time scales are involved. The initial laterally homogeneous ...

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