Results 41 to 50 of about 39,354 (50)

CFD Numerical simulations of Francis turbines

Revista Facultad de Ingeniería Universidad de Antioquia, 2010
En este artículo se aborda la simulación numérica del flujo en el interior de una turbina Francis. La metodología a seguir para la simulación del flujo en una turbina Francis depende de los objetivos perseguidos: mientras que para determinar la curva ...
Santiago Laín, Manuel García, Brian Quintero, Santiago Orrego   +3 more
doaj  

Turbulent pair dispersion in the presence of gravity

New Journal of Physics, 2015
Turbulent pair dispersion of heavy particles is strongly altered when particles of two different Stokes numbers (bidisperse) are considered, and this is further compounded when a uniform gravitational acceleration is present.
Kelken Chang, Benedict J Malec, Raymond A Shaw   +2 more
doaj   +1 more source

Approaching the Black Hole by Numerical Simulations

Universe, 2019
Black holes represent extreme conditions of physical laws. Predicted about a century ago, they are now accepted as astrophysical reality by most of the scientific community.
Christian Fendt
doaj   +1 more source

On numerical Simulations of Polymer Extrusion Instabilities

Applied Rheology, 2002
The objective of this study is mainly to review recent work concerning the numerical modeling of the stick-slip and gross melt fracture polymer extrusion instabilities. Three different mechanisms of instability are discussed: (a) combination of nonlinear
Achilleos Evdokia, Georgiou Georgios C., Hatzikiriakos Savvas G.   +2 more
doaj   +1 more source

Numerical Simulations of Scalar Transport on Rough Surfaces

Fluids
Numerical simulations provide unfettered access to details of the flow where experimental measurements are difficult to obtain. This paper summarises the progress achieved in the study of passive scalars in flows over rough surfaces thanks to recent ...
Zvi Hantsis, Ugo Piomelli
doaj   +1 more source

Numerical Investigation of the Critical Areas of the Freight Train Wheel Web

Journal of Mechanical Engineering
This paper aims to investigate the impact of braking with brake blocks on the fatigue lifetime of the train wheel web. Braking generates heat, causing uneven thermal stress and residual stresses as it cools.
Dlhý Pavol, Peter Ondřej, Fajkoš Rostislav, Pokorný Pavel, Hutař Pavel, Jambor Michal   +5 more
doaj   +1 more source

Investigation of Photon Radiation in a Microsphere with Left-Handed Layers

Programación Matemática y Software, 2012
Se estudió numéricamente la radiación electromagnética de nanoemisores colocados en una microesfera multicapas con metamateriales con dispersión (materiales izquierdos LH).
Gennadiy Burlak, Alfredo Díaz de Anda
doaj  

NUMERICAL METHODS FOR FAST MAGNETOACOUSTIC WAVES IN SOLAR CORONAL LOOPS

TASK Quarterly, 2009
Numerical methods for standing fast magnetoacoustic kink waves in an isothermal solar coronal slab with a field aligned flow are considered. Such waves are triggered impulsively by a velocity pulse that is initially launched in an ambient medium.
MARCIN GRUSZECKI, KRZYSZTOF MURAWSKI
doaj  

CFD Numerical simulations of Francis turbines

Revista Facultad de Ingeniería Universidad de Antioquia, 2013
Santiago Laín-Beatove, Manuel J. García.Ruiz, Brian Quintero-Arboleda, Santiago Orrego-Bustamante   +3 more
doaj   +1 more source

Three-dimensional Monte Carlo simulations of the dynamics of macromolecular particles in solutions flowing in mesopores

Open Chemistry, 2010
Atwi Ali, Khater Antoine, Hijazi Abbas
doaj   +1 more source