Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Kartik P. Iyer"'
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p L042002 (2022)
We use well-resolved direct numerical simulations of high-Reynolds-number turbulence to study a fundamental statistical property of turbulence—the asymmetry of velocity increments—with likely implications on important dynamics. This property, ign
Externí odkaz:
https://doaj.org/article/13e4413b60444c22987da298f3b0120f
Publikováno v:
Physical Review X, Vol 9, Iss 4, p 041006 (2019)
The turbulence problem at the level of scaling exponents is hard in part because of the multifractal scaling of small scales, which demands that each moment order be treated and understood independently. This conclusion derives from studies of veloci
Externí odkaz:
https://doaj.org/article/3c0333b4772243ca8adf32b832af7d1c
Autor:
Kartik K. Iyer
Publikováno v:
Frontiers in Neuroscience, Vol 12 (2018)
Externí odkaz:
https://doaj.org/article/34ba9775ca9d458e8428bc2e2392ec9a
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Significance The heat transport law in turbulent convection remains central to current research in the field. Our present knowledge of the heat transport law for Ra>1012 is inconclusive, where the Rayleigh number Ra is a measure of the strength of co
Publikováno v:
Journal of Fluid Mechanics. 930
Using direct numerical simulations performed on periodic cubes of various sizes, the largest being $8192^3$ , we examine the nonlinear advection term in the Navier–Stokes equations generating fully developed turbulence. We find significant dissipat
Publikováno v:
Proc Natl Acad Sci U S A
An important idea underlying a plausible dynamical theory of circulation in three-dimensional turbulence is the so-called Area Rule, according to which the probability density function (PDF) of the circulation around closed loops depends only on the
Publikováno v:
Frontiers in Systems Neuroscience, Vol 8 (2014)
Criticality has emerged as a leading dynamical candidate for healthy and pathological neuronal activity. At the heart of criticality in neural systems is the need for parameters to be tuned to specific values or for the existence of self-organizing m
Externí odkaz:
https://doaj.org/article/d70b51c104324c9a9cc01d92901ce660
Publikováno v:
Proc Natl Acad Sci U S A
In their comment on Iyer et al. (1), He et al. (2) appear to address two putative issues: 1) that Iyer et al. neglect to point out that the small aspect ratio of their simulation could have an impact on the outcome; 2) He et al. (2) use their own dat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e09a1d43c184298322f4b882ded54b7c
https://europepmc.org/articles/PMC7720160/
https://europepmc.org/articles/PMC7720160/
Publikováno v:
Physical Review Fluids. 5
From a database of direct numerical simulations of homogeneous and isotropic turbulence, generated in periodic boxes of various sizes, we extract the spherically symmetric part of moments of velocity increments and first verify the following (somewha