Buscar
Mostrando ítems 1-10 de 140
Comparison of low-cost two-equation turbulence models for prediction flow dynamics in twin-jets devices
(2007)
The flow field of a turbulent twin plane jet impinging normally onto a flat surface was investigated numerically for two configurations: a non-recirculating double jet at Re= 14,000 and a partially recirculated double jet ...
Computational analysis of different turbulence models in a vane pump simulation
(Corporación Universidad de la Costa, 2021)
Radiation hydrodynamical turbulence in protoplanetary disks: Numerical models and observational constraints
(IOP Publishing Ltd, 2017)
Planets are born in protostellar disks, which are now observed with enough resolution to address questions about internal gas flows. Magnetic forces are possibly drivers of the flows, but ionization state estimates suggest ...
Turbulent transport mechanisms on the heat confinement in tunnels by using low-velocity air curtains
(Pergamon-Elsevier, 2020)
Simulations with the Fire Dynamics Simulator (FDS) were performed to study the ability of Double Stream-Twin Jets (DS-TJ) air curtains to confine heat. Numerical simulations aimed to model a 1:34 scale tunnel, equipped ...
Influence of particle mass fraction over the turbulent behaviour of an incompressible particle-laden flow
(MDPI, 2021-10-21)
The presence of spherical solid particles immersed in an incompressible turbulent flow was
numerically investigated from the perspective of the particle mass fraction (PMF or φm), a measure
of the particle-to-fluid mass ...
Wave damping of a sloshing wave by an interacting turbulent vortex flow
(American Physical Society, 2020)
We report on the enhancement of the hydrodynamic damping of gravity waves at the surface of a fluid layer as they interact with a turbulent vortex flow in a sloshing experiment. Gravity surface waves are excited by oscillating ...
Hysteresis provides self-organization in a plasma model
(SPRINGER, 2006)
The magnetosphere is a multi-scale spatio-temporal complex dynamical system. Self-organization is a possible solution to the seemingly contradicting observation of the repeatable and coherent substorm phenomena with ...
Study of colliding particle-pair velocity correlation in homogeneous isotropic turbulence
(MDPI, 2020-12-19)
This paper deals with the numerical analysis of the particle inertia and volume fraction
effects on colliding particle-pair velocity correlation immersed in an unsteady isotropic homogeneous turbulent flow. Such correlation ...
Gravity wave instability in a turbulent free-surface Taylor–Couette flow: experiments and comparison with an amplitude equation with additive noise
(IOP Publishing, 2015)
Wepresent an experimental and theoretical study on the gravity-wave instability developing in a
highly turbulent free-surface Taylor–Couette flow, for which only the inner cylinder rotates. Above a
critical rotation ...
Degeneration of internal Kelvin waves in a continuous twolayer stratification
(Cambridge Univ Press, 2015)
We explore the evolution of the gravest internal Kelvin wave in a two-layer rotating cylindrical
basin, using direct numerical simulations (DNS) with a hyperviscosity/diffusion approach to
illustrate different dynamic ...