54 citations · 196 across the 11 of their papers we have counts for
11 papers
Nonlocal energy transfer mechanism in three-dimensional quantum turbulence
Elliot Bes, Guillaume Balarac, Juan Ignacio Polanco
We investigate the kinetic energy cascade in zero-temperature quantum turbulence. Using simple theoretical arguments and unprecedented numerical simulations, we unveil an universal…
Disentangling temperature and Reynolds number effects in quantum turbulence
Juan Ignacio Polanco, Philippe-E. Roche, Luminita Danaila +1
The interplay between viscous and frictional dissipation is key to understanding quantum turbulence dynamics in superfluid He. Based on a coarse-grained two-fluid description,…
Fast and accurate evaluation of Biot-Savart integrals over spatial curves in periodic domains
Juan Ignacio Polanco
The Biot-Savart law is relevant in physical contexts including electromagnetism and fluid dynamics. In the latter case, when the rotation of a fluid is confined to a set of very th…
Multi-particle Lagrangian statistics in homogeneous rotating turbulence
Juan Ignacio Polanco, S. Arun, Aurore Naso
Geophysical flows are often turbulent and subject to rotation. This rotation modifies the structure of turbulence and is thereby expected to sensibly affect its Lagrangian properti…
On the determination of vortex ring vorticity using Lagrangian particles
O. Outrata, M. Pavelka, J. Hron +3
Particles are a widespread tool for obtaining information from fluid flows. When Eulerian data are unavailable, they may be employed to estimate flow fields or to identify coherent…
Vortex clustering, polarisation and circulation intermittency in classical and quantum turbulence
Juan Ignacio Polanco, Nicolás P. Müller, Giorgio Krstulovic
The understanding of turbulent flows is one of the biggest current challenges in physics, as no first-principles theory exists to explain their observed spatio-temporal intermitten…
Intermittency of velocity circulation in quantum turbulence
Nicolás P. Müller, Juan Ignacio Polanco, Giorgio Krstulovic
The velocity circulation, a measure of the rotation of a fluid within a closed path, is a fundamental observable in classical and quantum flows. It is indeed a Lagrangian invariant…
Counterflow-Induced Inverse Energy Cascade in Three-Dimensional Superfluid Turbulence
Juan Ignacio Polanco, Giorgio Krstulovic
Finite-temperature quantum turbulence is often described in terms of two immiscible fluids that can flow with a non-zero mean relative velocity. Such out-of-equilibrium state is kn…
Inhomogeneous distribution of particles in co-flow and counterflow quantum turbulence
Juan Ignacio Polanco, Giorgio Krstulovic
Particles are today the main tool to study superfluid turbulence and visualize quantum vortices. In this work, we study the dynamics and the spatial distribution of particles in co…
Relative dispersion of particle pairs in turbulent channel flow
Juan Ignacio Polanco, Ivana Vinkovic, Nickolas Stelzenmuller +2
Lagrangian tracking of particle pairs is of fundamental interest in a large number of environmental applications dealing with contaminant dispersion and passive scalar mixing. The…
Lagrangian acceleration statistics in a turbulent channel flow
Nickolas Stelzenmuller, Juan Ignacio Polanco, Laure Vignal +2
Lagrangian acceleration statistics in a fully developed turbulent channel flow at are investigated, based on tracer particle tracking in experiments and direct numeric…