Results 31 to 40 of about 1,892,200 (345)
Direct numerical simulation of driven cavity flows [PDF]
Applied Scientific Research, 1993 Direct numerical simulations of 2D driven cavity flows have been performed. The simulations exhibit that the flow converges to a periodically oscillating state at Re=11,000, and reveal that the dynamics is chaotic at Re=22,000. The dimension of the attractor and the Kolmogorov entropy have been computed.
Verstappen, R. +2 more
openaire +2 more sources
Direct numerical simulations of multifluid flows in a vertical channel undergoing topology changes
Physical Review Fluids, 2018 Multifluid flows in a vertical channel are examined by direct numerical simulations, for situations where the topology of the interface separating the different fluids changes.
Jiacai Lu, G. Tryggvason
semanticscholar +1 more source
Unsteady natural convection in a triangular enclosure under isothermal heating [PDF]
, 2011 The fluid flow and heat transfer inside a triangular enclosure due to instantaneous heating on the inclined walls are investigated using an improved scaling analysis and direct numerical simulations.
Saha, Suvash
core +2 more sources
Extreme velocity gradients in turbulent flows
New Journal of Physics, 2019 Fully turbulent flows are characterized by intermittent formation of very localized and intense velocity gradients. These gradients can be orders of magnitude larger than their typical value and lead to many unique properties of turbulence.
Dhawal Buaria +3 more
doaj +1 more source
Fast Numerical simulations of 2D turbulence using a dynamic model for Subgrid Motions [PDF]
, 2001 We present numerical simulation of 2D turbulent flow using a new model for the subgrid scales which are computed using a dynamic equation linking the subgrid scales with the resolved velocity.
B. Dubrulle +29 more
core +3 more sources
New Journal of Physics, 2017 Phoresis, the drift of particles induced by scalar gradients in a flow, can result in an effective compressibility, bringing together or repelling particles from each other.
Vishwanath Shukla +3 more
doaj +1 more source
Results in Engineering, 2021 The present review shows a summary of current trends in high-fidelity simulations of turbulent flows in moderately complex geometries. These trends are put in the historical context of numerical simulations, starting with early weather predictions and ...
Ricardo Vinuesa
doaj +1 more source
Evaluation of sub grid scale and local wall models in Large-eddy simulations of separated flow
E3S Web of Conferences, 2015 The performance of the Sub Grid Scale models is studied by simulating a separated flow over a wavy channel. The first and second order statistical moments of the resolved velocities obtained by using Large-Eddy simulations at different mesh resolutions ...
Sam Ali Al, Szasz Robert, Revstedt Johan
doaj +1 more source
Direct numerical simulations for non-Newtonian rheology of concentrated particle dispersions [PDF]
, 2009 The non-Newtonian behavior of a monodisperse concentrated dispersion of spherical particles was investigated using a direct numerical simulation method, that takes into account hydrodynamic interactions and thermal fluctuations accurately.
A. Einstein +4 more
core +1 more source
Rotational dynamics of bottom-heavy rods in turbulence from experiments and numerical simulations
Theoretical and Applied Mechanics Letters, 2021 We successfully perform the three-dimensional tracking in a turbulent fluid flow of small axisymmetrical particles that are neutrally-buoyant and bottom-heavy, i.e., they have a non-homogeneous mass distribution along their symmetry axis.
Linfeng Jiang +4 more
doaj +1 more source