Results 71 to 80 of about 33,900 (190)
Determination of the decay exponent in mechanically stirred isotropic turbulence
AIP Advances, 2011 Direct numerical simulation is used to investigate the decay exponent of isotropic homogeneous turbulence over a range of Reynolds numbers sufficient to display both high and low Re number decay behavior.
J. Blair Perot
doaj +1 more source
Lyapunov analysis for fully developed homogeneous isotropic turbulence [PDF]
Theoretical and Computational Fluid Dynamics, 2010 27 pages, 17 ...
openaire +2 more sources
Lagrangian statistics of pressure fluctuation events in homogeneous isotropic turbulence
, 2019 Homogeneous and isotropic turbulent fields obtained from two DNS databases (with $\mbox{Re}_\lambda$ equal to 150 and 418) were seeded with point particles that moved with the local fluid velocity to obtain Lagrangian pressure histories.
Bappy, Mehedi +2 more
core +1 more source
Scaling of Lyapunov exponents in homogeneous isotropic turbulence
Physical Review Fluids, 2017 Lyapunov exponents measure the average exponential growth rate of typical linear perturbations in a chaotic system, and the inverse of the largest exponent is a measure of the time horizon over which the evolution of the system can be predicted. Here, Lyapunov exponents are determined in forced homogeneous isotropic turbulence for a range of Reynolds ...
Mohan, Prakash +2 more
openaire +2 more sources
Tellus: Series A, Dynamic Meteorology and Oceanography, 2012 In the context of tackling the ill-posed inverse problem of motion estimation from image sequences, we propose to introduce prior knowledge on flow regularity given by turbulence statistical models.
Pablo D. Mininni +3 more
doaj +1 more source
Particle Dispersion and Coherent Fine Scale Eddies in Turbulence
Journal of Fluid Science and Technology, 2008 Direct numerical simulations of homogeneous isotropic turbulence laden with particles have been conducted to clarify the relationship between particle dispersion and coherent fine scale eddies in turbulence.
Makoto SATO +2 more
doaj +1 more source
Eddy diffusivity in homogeneous isotropic turbulence
, 2019 We use the recently developed Macroscopic Forcing Method [Mani and Park, Physical Review Fluids, 6:054607, 2021] to compute the scale-dependent eddy diffusivity characterizing ensemble-averaged scalar and momentum transport in incompressible homogeneous isotropic turbulence. For scales larger than the energy containing eddies, eddy diffusivity is found
Shirian, Yasaman, Mani, Ali
openaire +2 more sources
The analysis and modeling of dilatational terms in compressible turbulence [PDF]
It is shown that the dilatational terms that need to be modeled in compressible turbulence include not only the pressure-dilatation term but also another term - the compressible dissipation.
Erlebacher, G. +3 more
core +1 more source
Journal of Fluid Science and Technology, 2014 Three-dimensional homogeneous isotropic turbulence simulations are conducted using moment-based lattice Boltzmann method and the large-eddy simulation based lattice Boltzmann method.
Muhammad IZHAM +2 more
doaj +1 more source
Cascade time-scales for energy and helicity in homogeneous isotropic turbulence
, 2004 We extend the Kolmogorov phenomenology for the scaling of energy spectra in high-Reynolds number turbulence, to explicitly include the effect of helicity.
A. S. Monin +11 more
core +1 more source