Roie EzratyHebrew University of Jerusalem | HUJI · Racah Institute of Physics
Roie Ezraty
Master of Science
PhD student at the Racah Institute of Physics, Hebrew University of Jerusalem, Israel
About
6
Publications
229
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Introduction
PhD student at Hebrew University of Jerusalem (Racah institute of physics) studying soft-matter and non-linear physics.
My projects include:
Physical systems that learn
Modeling the fluids of the Dead-Sea (Israel)
Non-linear physics using machine learning
Non-linear dynamics in bifurcating systems
Publications
Publications (6)
When a saturated brine layer is cooled from above, both a convective temperature front as well as a front of sedimenting salt crystals can form. We employ direct numerical simulations to investigate the evolution and interaction of these two density fronts. Depending on the ratio of the temperature front velocity and the crystal settling velocity,...
Bifurcations in dynamical systems are often studied experimentally and numerically using a slow parameter sweep. Focusing on the cases of period-doubling and pitchfork bifurcations in maps, we show that the adiabatic approximation always breaks down sufficiently close to the bifurcation, so that the upsweep and downsweep dynamics diverge from one a...
Bifurcations in dynamical systems are often studied experimentally and numerically using a slow parameter sweep. Focusing on the cases of period-doubling and pitchfork bifurcations in maps, we show that the adiabatic approximation always breaks down sufficiently close to the bifurcation, so that the upsweep and downsweep dynamics diverge from one a...
Cooling a water body from above produces a top-heavy profile that in early times
propagates downwards in a diffusive manner and then in a convective manner.
The gradient in the density profile that is due to temperature difference is termed
a "thermal density front". Salt added to the water also influences their gravity,
and the brine can exhibit p...
Turbulence and eddy covariance measurements on a floating platform over water surfaces can be contaminated by platform oscillations, which may affect the calculated air-water exchange. The conventional method for decontamination of the platform oscillations from the wind velocity measurements requires the installation of an additional sensitive, an...
