53 citations · 174 across the 7 of their papers we have counts for
6 papers · 1 filter
Depletion of Nonlinearity in Magnetohydrodynamic Turbulence: Insights from Analysis and Simulations
J. D. Gibbon, A. Gupta, G. Krstulovic +6
We build on recent developments in the study of fluid turbulence [Gibbon \textit{et al.} Nonlinearity 27, 2605 (2014)] to define suitably scaled, order- moments, , of…
Numerical study of impeller-driven von Karman flows via a volume penalization method
Sophia Kreuzahler, Daniel Schulz, Holger Homann +2
The von Karman flow apparatus produces a highly turbulent flow inside a cylinder vessel driven by two counter-rotating impellers. Over more than two decades, this experiment has be…
Structures and Lagrangian statistics of the Taylor-Green Dynamo
Holger Homann, Yannick Ponty, Giorgio Krstulovic +1
The evolution of a Taylor-Green forced magnetohydrodynamic (MHD) system showing dynamo activity is analyzed via direct numerical simulations. The statistical properties of the velo…
Spectral Modeling of Magnetohydrodynamic Turbulent Flows
J. Baerenzung, H. Politano, Y. Ponty +1
We present a dynamical spectral model for Large Eddy Simulation of the incompressible magnetohydrodynamic (MHD) equations based on the Eddy Damped Quasi Normal Markovian approximat…
Spectral Modeling of Turbulent Flows and the Role of Helicity
Julien Baerenzung, Helene Politano, Yannick Ponty +1
We present a new version of a dynamical spectral model for Large Eddy Simulation based on the Eddy Damped Quasi Normal Markovian approximation \cite{sao,chollet_lesieur}. Three dis…
Dynamo action at low magnetic Prandtl numbers: mean flow vs. fully turbulent motion
Yannick Ponty, Pablo Mininni, Jean-François Pinton +2
We compute numerically the threshold for dynamo action in Taylor-Green swirling flows. Kinematic calculations, for which the flow field is fixed to its time averaged profile, are c…