74 citations · 301 across the 13 of their papers we have counts for
14 papers
Whither the Zeroth Law of Turbulence?
Kartik P. Iyer, Theodore D. Drivas, Gregory L. Eyink +1
Experimental and numerical studies of incompressible turbulence suggest that the mean dissipation rate of kinetic energy remains constant as the Reynolds number tends to infinity (…
Dependence of the asymptotic energy dissipation on third-order velocity scaling
Kartik P. Iyer
The asymptotic energy dissipation is connected to the third-order scaling of the longitudinal velocity increment magnitude in three-dimensional turbulence via the Kolmogorov …
Asymmetry of velocity increments in turbulence
Katepalli R. Sreenivasan, Kartik P. Iyer, Ashvin Vinodh
We use well-resolved direct numerical simulations of high-Reynolds-number turbulence to study a fundamental statistical property of turbulence -- the asymmetry of velocity incremen…
The area rule for circulation in three-dimensional turbulence
Kartik P. Iyer, Sachin S. Bharadwaj, Katepalli R. Sreenivasan
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 func…
Oscillations Modulating Power Law Exponents in Isotropic Turbulence: Comparison of Experiments with Simulations
Kartik P. Iyer, Gregory P. Bewley, Luca Biferale +2
Inertial-range features of turbulence are investigated using data from experimental measurements of grid turbulence and direct numerical simulations of isotropic turbulence simulat…
Scaling exponents saturate in three-dimensional isotropic turbulence
Kartik P. Iyer, Katepalli R. Sreenivasan, P. K. Yeung
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…
Fractal iso-level sets in high-Reynolds-number scalar turbulence
Kartik P. Iyer, Jörg Schumacher, Katepalli R. Sreenivasan +1
We study the fractal scaling of iso-levels sets of a passive scalar mixed by three-dimensional homogeneous and isotropic turbulence at high Reynolds numbers. The Schmidt number is…
Circulation in high Reynolds number isotropic turbulence is a bifractal
Kartik P. Iyer, Katepalli R. Sreenivasan, P. K. Yeung
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 un…
Self-similar Subgrid-scale Models for Inertial Range Turbulence and Accurate Measurements of Intermittency
Luca Biferale, Fabio Bonaccorso, Michele Buzzicotti +1
A class of spectral subgrid models based on a self-similar and reversible closure is studied with the aim to minimize the impact of subgrid scales on the inertial range of fully de…
Scaling of locally averaged energy dissipation and enstrophy density in isotropic turbulence
Kartik P Iyer, Jörg Schumacher, Katepalli R Sreenivasan +1
Using direct numerical simulations of isotropic turbulence in periodic cubes of several sizes, the largest being yielding a microscale Reynolds number of , we study…
Steep cliffs and saturated exponents in three dimensional scalar turbulence
Kartik P. Iyer, Jörg Schumacher, Katepalli R Sreenivasan +1
The intermittency of a passive scalar advected by three-dimensional Navier-Stokes turbulence at a Taylor-scale Reynolds number of is studied using direct numerical simulation…
Multiscale anisotropic fluctuations in sheared turbulence with multiple states
Kartik P. Iyer, Fabio Bonaccorso, Luca Biferale +1
We use high resolution direct numerical simulations to study the anisotropic contents of a turbulent, statistically homogeneous flow with random transitions among multiple energy c…
Rotating turbulence under "precession-like" perturbation
Kartik P. Iyer, Irene Mazzitelli, Fabio Bonaccorso +2
The effects of changing the orientation of the rotation axis on homogeneous turbulence is considered. We perform direct numerical simulations on a periodic box of grid poi…
Refined similarity hypothesis using 3D local averages
Kartik P. Iyer, Katepalli R. Sreenivasan, P. K. Yeung
The refined similarity hypotheses of Kolmogorov, regarded as an important ingredient of intermittent turbulence, has been tested in the past using one-dimensional data and plausibl…